provide a 95% confidence interval estimate of the difference between the proportion of women and men who trust recommendations made on this particular social networking site. (round your answers to four decimal places.)

Answers

Answer 1

Since the values of [tex]\hat{p}_1, \hat{p}_2, n_1[/tex], and n_2 are not given, it is not possible to determine the exact 95% confidence interval estimate.

A 95% confidence interval estimate of the difference between the proportion of women and men who trust recommendations made on a social networking site can be calculated using the formula for a difference in proportions:

[tex]$$\hat{p}_1 - \hat{p}_2 \pm z^* \sqrt{\frac{\hat{p}_1(1-\hat{p}_1)}{n_1} + \frac{\hat{p}_2(1-\hat{p}_2)}{n_2}}$$[/tex]

where [tex]$\hat{p}_1$[/tex] and [tex]$\hat{p}_2$[/tex] are the sample proportions of women and men who trust recommendations, respectively, n_1 and n_2 are the sample sizes of women and men, and z^* is the critical value from the standard normal distribution for a 95% confidence level (approximately equal to 1.96).

Since the values of [tex]\hat{p}_1, \hat{p}_2, n_1[/tex], and n_2 are not given, it is not possible to determine the exact 95% confidence interval estimate.

However, this formula can be used to calculate the estimate once the sample data is available.

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Related Questions

One number is 4 more than another. If 3 times the smaller number is equal to twice the larger increased by 5. Find the numbers

Answers

The smaller number is x and the larger number is 17

What is an Algebraic Expression?

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Expressions are made up of terms.

Given here: One number is 4 more than another. And 3 times the smaller number is equal to twice the larger increased by 5.

Let the smaller number be x then we have

3x=2(x+4)+5

3x-2x=8+5

x=13

Thus the smaller number is x and the larger number is 17

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each of the following three data sets represents the iq scores of a random sample of adults. iq scores are known to have a mean and median of 100.

Answers

a) The mean of the sample of size 5 is equals to 103.

b) The mean of the sample of size 12 is equals to 103.3.

c) Median of sample of size 5 is 104.

d) Median sample of size 30 is 105.5.

Mean: Sum of observations is divided by number of observations in the sample is named as mean, which is denoted by X- bar. Moreover, the sample mean signifies the measure of centre of the data.

X-bar = (x₁ + x₂ + --- + xₙ)/n

Median: Median divides the observations into two equal parts. It represents the middle value for a set of observations when they are arranged in order of magnitude. There are two cases arises.

Case (1): Sample size (n) is odd: First, arrange the data in ascending order. Then, the median is the middle value and lies at the position.

Case (2): Sample size (n) is even: First, arrange the data in ascending order. Then, the median is the mean of the two data values that lie on either side of the position. Median = ( n/2)ᵗʰ term , n is odd

=[(( n/2)ᵗʰ term + (n/2 + 1)ᵗʰ term]/2, n is even

Now, a) Mean of first sample with sample size, n = 5.

Sum of values = 105 + 111 + 97 + 94 + 108 = 515

So, mean = 515/5 = 103

b) Sample 2, sample size , n = 12

Sum of values = 105 + 111 + 97 + 94 + 108 + 101 + 112 + 114 + 103+ 102+ 91 + 101

= 515 + 724 = 1239

Mean = 1239/12 = 103.25

c) Now, we have to determine median for sample size 5. Here, sample values are odd in number, i.e., 5. So, middle term is median after arranging in order. Ascending order is 94,97, 104, 108, 111 and middle term is 104, so median is 104.

d) Now, we have a sample of size 30, which is an even number. First arrange the numbers in ascending order as 91,92,92,94,95,97,100,101,101,101,101,102,103,105,105,105,106,107,107,108,110,111, 111, 112,113,114,115,115,116,116. So,

Median is [((n/2)th + (n/2 + 1)th ]/2 i.e, [ 30/2)th + 30/2 + 1)th ]/2

=( 15th + 16th)/2 ( observations)

= (105 + 106 )/2 = 211/2 = 105.5

Hence, the median of sample size 30 is 105.5.

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Complete question:

See the above figure, each of the following three data sets represents the iq scores of a random sample of adults. iq scores are known to have a mean and median of 100.

a) What is the mean of the sample of size 5? Full data set Sample of Size 108 114 (Type an integer or decimal rounded to one decimal place as needed._ Sample of Size 12

b) What is the mean of the sample of size 12? 114 105 115 (Type an integer or decimal rounded to one decimal place as needed:)

c) What is the median of the sample of size 5? (Type an integer or decimal rounded to one decimal place as needed:)

d) What is the median of the sample of size 30? (Type an integer or decimal rounded to one decimal place as needed:)


Miguel Rodriguez borrowed $300 from his brother Julio to pay for books and tuition. He agreed to pay Julio in 6 months
with simple annual interest at 6.6%. What is the simple interest?

Answers

The simple interest is given as SI = $ 9.90

What is Simple Interest?

Simple interest is a method of calculating interest that ignores the impact of compounding. While interest frequently compounds throughout the course of a loan's set periods, simple interest does not. Simple interest is calculated by multiplying the principal amount by the interest rate, times the number of periods.

Simple Interest = ( Principal Amount x Rate x Time Period ) / 100

Given data ,

Let the simple interest be represented as S

Now , the equation will be

The principal amount be P = $ 300

The rate of interest R = 6.6 %

The number of months T = 6 months = 1/2 year

So , the simple interest S = PRT / 100

Substituting the values in the equation , we get

S = ( 300 x 6.6 x 0.5 ) / 100

On simplifying the equation , we get

S = 3 x 6.6 x 0.5

S = $ 9.90

Hence , the simple interest is $ 9.90

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Factor 48-6 using GCF

Answers

Answer:

I think the answer is six i just searched it  or it could be 12

Step-by-step explanation:

The greatest common factor (GCF) of 48 and 6 is 6, so:

48 - 6 = 42.

this isn't college level *laugh*

Find the volume of the cylinder

Answers

Answer:

Volume

[tex]\pi r ^{2} h[/tex]

[tex]\pi = \frac{22}{7} [/tex]

[tex]r = 8[/tex]

[tex]h = 15[/tex]

[tex] \frac{22}{7} \times 8 {}^{2} \times 15 = 3015.93[/tex]

What is the equation of this line in slope-intercept form?

y=-2/3x+1

y=2/3x+1

y=3/2x+1

I don’t know

Answers

The equation of the line is y = -2/3x + 1

How to detemrine the equation of the line

From the question, we have the following parameters that can be used in our computation:

The graph

On the graph, we have the following highlights

The graph intersect the y-axis at y = 1

This means that the intercept c is 1

Also, as x changes by 1, the y values changes by -2/3

This mean sthat the slope is -2/3

So, we have

y = mx + c

This gives

y = -2/3x + 1

Hence, the equation is y = -2/3x + 1

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Solve: -3(x + 7) = 0 0 and -7 -7 -3 and -7 None of these choices are correct.

Answers

The solution of the equation -3(x+7)=7 is x=-7.

How to solve an algebric expression:

An algebraic expression is a mathematical phrase that contains numbers and/or variables. Though it cannot be solved because it does not contain an equals sign (=), it can be simplified. You can, however, solve algebraic equations, which contain algebraic expressions separated by an equals sign.

To solve the given equation:

-3(x+7)=0

Now I need to find the value of x by sorting the variables. This expression has an x ​​variable, so find the value of the variable.

The formula is:

-3(x+7) =0

give:

-3(x+7) =0

(divide both sides of the equation by the coefficient of the variable)

x+7=0

(reorder variables on the left side of the expression)

x=-7

The answer is x= -7.

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Will give brainliest

Answers

The minimum value on the interval [-11, 5] is -19, and the maximum value is 28.

What is linear function?

In mathematics, a linear function is a function that expresses the relationship between two variables, x and y, in the form of y = mx + b, where m denotes the slope of the line and b the y-intercept. A linear function has a graph that is either a straight line passing through the origin if b = 0 or a point (0, b) if b 0.

A number of applications can benefit from linear functions because of their numerous beneficial characteristics. One of these characteristics is that they are always continuous, i.e., their graphs are seamless and devoid of gaps. They are the best candidates for simulating actual scenarios when two variables have a continuous relationship because of this characteristic.

According to question:

The function f(a) = Va + 3 is a linear function, and all linear functions have a minimum and maximum value that occur at either endpoint of the interval. In this case, the interval is [-11, 5].

To find the minimum value, we evaluate the function at -11:

f(-11) = V(-11) + 3 = -22 + 3 = -19

To find the maximum value, we evaluate the function at 5:

f(5) = V5 + 3 = 25 + 3 = 28

Therefore, the minimum value on the interval [-11, 5] is -19, and the maximum value is 28.

Minimum: -19

Maximum: 28

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What shape is the cross-section?

(it isnt a multiple choice question sorry)

Answers

The shape of the cross section is Trapezium.

What is Cross- Section?

A cross-section is a shape that results from the cutting of a solid (such as a cone, cylinder, or sphere) by a plane.

For instance, if the base of a cylinder-shaped object is cut by a plane, the resulting cross-section will be a circle.

Given:

Here we have the figure of shape Triangular Pyramid.

and, the plane cutting the Pyramid is in shape of square.

So, the resultant cross section will be of the shape as seen from the cutting is Trapezium.

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Solve for x.

2x−45=x+4

Answers

Answer:

x=49

Step-by-step explanation: If we have the equation 2x-45=x+4 we would first subtract x from both sides of the equation giving us x-45=4. We then have to isolate x to do this we add 45 to both sides giving us the answer x=49.

The midpoints of the three sides of a triangle are P(-7; -2), Q(-1; 9) and R(5; -3).
Calculate the area of the circumscribed circle of the triangle.

Answers

Therefore , the solution of the given problem of area comes out to be  Area of circle  85π cm2.

Describe surface area

Its surface area provides a good estimate of its overall size. When computing a right triangle's squared, the surroundings are taken into consideration. The surface area of everything determines its overall size. The sum of the volumes on each of the six horizontal sides makes up the volume of water inside a cuboid. Utilize the following formula to get the box's dimensions: In 2lh, 2lw, and 2hw, the region is the same (SA). The flexible shape's total area serves as a representation of the area.

Here,

Given:

Points :P(-7; -2), Q(-1; 9) and R(5; -3).

The area of the circumscribed circle of the triangle.

is:

=> PQ = √(-7 - (-1))² + (-2 - (-9))²

=> PQ = √85

The radius is √85

=> Area of circle = π(√85)²

=>  Area of circle = 85π cm2

Therefore , the solution of the given problem of area comes out to be  Area of circle : 85π cm2.

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An aerospace engineering student performs an experiment in a wind tunnel to determine the lift coefficient of an airfoil. The student takes 61 measurements of the vertical force using a force balance, yielding a sample mean value of 44.20 N and a sample variance of 4.00 N^2. Determine (a) the percent probability that an additional measurement will be between 45.56 N and 48.20 N, (b) the range (in N) over which the true mean value will be, assuming 90 % confidence, and (c) the range (in N^2) over which the true variance will be assuming 90 % confidence.

Answers

The mean of these five values is 9.6. This means that the average value  of the five numbers is 9.6.

The formula for calculating the mean is:

Mean = (Sum of all values) / (Number of values)

For example, if you had the following numbers: 4, 8, 10, 12, and 15, you would calculate the mean by adding the values together and then dividing by the number of values:

Mean = (4 + 8 + 10 + 12 + 15) / 5 = 9.6

The mean of these five values is 9.6. This means that the average value of the five numbers is 9.6.

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The graph shows the position (distant from home) of a bicycle rider on a 42-minute trip. Letters A through E are time intervals during the trip. The key defines the length of each interval.

Use the equation below to calculate the bicycle rider’s average speed in kilometers per minute for the first 30 minutes of the trip

Distance(km)/time(min) = average speed

Answers

The average speed on the first 30 minutes is 0.2 km per min.

How to get the average speed?

Here we have the graph for the position of a bycicle rider on a 42-minute trip.

On the vertical axis we can see the position, and on the horizontal axis we can see the time.

Remember that:

speed = distance/time.

To find the average speed on the first 30 min, we need to take the quotient between the position after 30 minutes and 30 min.

At 30 min we can see that the position is at 6 km, then the speed will be:

S = 6km/30min = 0.2 km per min.

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A bag of garden soil weighs 40 pounds and holds 2 cubic feet. Find the weight of 15 bags in kilograms and the volu
of 15 bags in cubic yards.

Answers

The weight of 15 bags in kilograms and the volume of 15 bags in cubic yards are 272. 15 kilograms and 1. 1 cubic yards

How to determine the values

It is important to note the conversion rate of the pounds to kilograms and also cubic feet to cubic yards

1 pound = 0. 453592 kilogram

If a bag of soil weighs 40 pounds which is equivalent to  0. 453592 kilogram

1 bag = 40(0.453592)

15 bags = x

x = 272. 15 kilograms

Then, we have that;

1 bag = 2 cubic feet

15 bags = 30 cubic feet

But, 1 cubic feet = 0. 037037 cubic yards

30 cubic feet = x

x = 1. 1 cubic yards

Hence, the values are 272. 15 kilograms and 1. 1 cubic yards

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Do running times of American movies differ somehow from running times of French movies? The author investigated this question by randomly selecting 25 recent movies of each type, resulting in the following running times Am: 94 90 95 93 128 95 125 91 104 116 161 102 90 110 92 113 116 90 97 103 95 120 109 91 136 Fm: 123 116 90 158 122 119 125 90 96 94 137 102 105 106 95 125 122 103 96 111 81 113 128 93 92 Construct a comparative stem-and-leaf display by listing stems in the middle of your paper and then placing the Am leaves out to the left and the Fr leaves out to the right. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) American Stems French 10 12 13 14 15 16 Comment on interesting features of the display. (Select all that apply.) French movies are unimodal strongly positively skewed, while American movies appear to be bimodal American movies are unimodal strongly positively skewed, while French movies appear to be bimodal. O A typical French movie runs around 95 minutes, while American movies are typically either around 95 minutes or around 125 minutes

Answers

The results of this investigation provide valuable insights into the differences in the film-making practices of American and French film industries.

The comparative stem-and-leaf display is as follows:

90 | AM: 90 90 91 92 94 95 95 95 97 NONE

91 | AM: 104 110 113 113 116 116 116 120 125

92 | AM: 128 136

95 | FM: 90 95 96 97 102 103 105 106 111 113 113 125 125 128 158

96 | FM: 90 94 96

97 | NONE

102 | FM: 102

103 | AM: 103

104 | AM: 104

105 | FM: 105

106 | FM: 106

109 | AM: 109

110 | AM: 110

111 | FM: 111

113 | AM: 113

116 | FM: 116 122 123

120 | AM: 120

125 | FM: 125

128 | FM: 128

136 | AM: 136

158 | FM: 158

The display shows that American movies appear to be bimodal, with a typical running time of around 95 minutes and another peak around 125 minutes. On the other hand, French movies are unimodal and strongly positively skewed with a typical running time of around 95 minutes. This suggests that French movies tend to have a shorter running time compared to American movies, but with a larger range of running times compared to the peak of American movies around 95 minutes.

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In the function P(t) = 309.3 . 1.008', P represents the population in millions and represents the number of years since 2010. Find the population in 2019 and the rate at which the population is growing in 2019. Use h = 0.001 to estimate the derivative with the difference quotient. The population in 2019 is !! million. The rate at which the population is growing in 2019 is million people per year. (Round answers to three decimal places.) Hint: The population in 2019 is P(9). The rate of change in 2019 is P' (9).

Answers

The population in 2019 is 311.8 million and the rate of change of the population in 2019 is 0.083 million people per year.

To find the population in 2019 and the rate at which the population is growing in 2019, we can use the given function P(t) = 309.3 . 1.008. Here, P represents the population in millions and t represents the number of years since 2010. We can use the difference quotient to estimate the derivative. The difference quotient for this function is (P(t+h)-P(t))/h where h is the difference in the number of years. For this question, h = 0.001. The population in 2019 is P(9) = 309.3 . 1.008^9 = 311.8 million people. The rate of change in 2019 is P' (9), which is calculated using the difference quotient. This comes to (P(9+0.001)-P(9))/0.001 = (311.811 - 311.8)/0.001 = 0.083 million people per year.

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If a model of the hexagon is made by using a scale factor of 6, which applies to the model? Select two options..

Answers

The effect of scaling on a hexagon by the scale factor of 6 is discussed above.

What is a hexagon?

In geometry -

a hexagon is a six-sided polygon creating the outline of a cube. the total of the internal angles of any simple hexagon is 720°.

Given is a model of the hexagon that is made by using a scale factor of 6.

If the initial length is equivalent to {a}. Then, after the scaling by the scale factor of {K}, the length becomes {Ka}. So, we can write the perimeter of the hexagon, before and after the scaling as -

P{i} = P{before scaling} = 6 x side = 6a

P{i} = 6a                                                             ... Eq { 1 }

P{f} = P{after scaling} = 6 x 6a = 36a

P{f} = 36a                                                           ... Eq { 2 }

The total of the internal angles of the hexagon will remain 720° only.

Therefore, the effect of scaling on a hexagon by the scale factor of 6 is discussed above.

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In the given figure, mHK = 50° and m/GKL = 50°.
Which statement is true?

The measure of ZJ is 25°, and triangle JKG is isosceles.

The measure of ZJ is 50°, and triangle JKG is isosceles.

The measure of ZJ is 25°, and triangle JKG is not isosceles.

The measure of ZJ is 50°, and triangle JKG is not isosceles.

Answers

Answer:

Step-by-step explanation:

The answer is A have a nice day :)

-There are some small cubes and some large cubes in a bag.
-The cubes are red or the cubes are yellow
-The ratio of the number of small cubes to the number of large cubes is 4:9
-The ratio of the number of red cubes to the number of yellow cubes is 3:5
a) What is the least possible number of cubes in the bag?
-All the small cubes are yellow.
b) Work out the least number of large yellow cubes in the bag.

Answers

The answers include the following:

The least possible number of cubes in the bag is 104.The least number of large yellow cubes in the bag is 45.

What is Probability?

This is referred to as the branch of mathematics concerning numerical descriptions of how likely an event is to occur,

The Red to Yellow ratio is given as 3:5.

Red = 3 to 8 and yellow = 5 to 8.

Small to Large ball ratio  = 4:9

Small = 4/13 and large = 9/13

5/8 × 9 / 13 × 104

= 5 * 9

= 45

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let the direction of a vector be the angle that the vector makes with the x -axis, measured counterclockwise from that axis. find the direction of the vector a1

Answers

The direction of vector a1 is found as: Ф = 75° with the x -axis, measured counterclockwise from that axis.

Explain about the vector?A quantity or phenomena with independent qualities for both magnitude and direction is called a vector. The term can also refer to a quantity's mathematical or geometrical representation. Velocity, momentum, torque, electromagnetic fields, and weight are a few characteristics of vectors in nature.

The stated vector is (-7.765,28.978)

Angle made is estimated by the formula:

Ф = tan ⁻¹ (y/x)

In which,

y = 28.978

x = -7.765

Put the given values;

Ф = tan ⁻¹ ( 28.978/-7.765)

Ф = - 74.99

Ф = 75°

So, the direction of the vector a1 is found as: Ф = 75° with the x -axis, measured counterclockwise from that x-axis.

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The complete question is-

let the direction of a vector be the angle that the vector makes with the x -axis, measured counterclockwise from that axis. find the direction of the vector a1 -  (-7.765, 28.978)

What is the value of x in the triangle 5 squared2 ,x ,5 squared 2

Answers

The value of x must be less than 50.

What is triangle?

Triangle is a three sided polygon which has three vertices. The three sides are connected with each other end to end at a point which forms the angles of the triangle.

In a triangle, the sum of the lengths of any two sides must be greater than the length of the third side.

Given that the two sides have lengths 5^2 and 5^2, we can write the inequality:

x < 5^2 + 5^2

Now, we can evaluate the expressions 5^2 and 5^2:

5^2 = 25

So, x < 25 + 25 = 50.

Therefore, the value of x must be less than 50.

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A farmer in the south exports 1220kg of mangoes in one week one week has 7 days, how many kilogram of mangoes does the farmer export in two days?

Answers

Answer:

348.6 kg

Step-by-step explanation:

(1220 kg / 7 days) x 2 days = 348.6 kg

What is the value of x?
Enter your answer in the box.
x =

Answers

Answer:

x=98

Step-by-step explanation:

a 7 sided shape has 900 degrees in it so

146+142+142+140+122+110=802

so

900-802=98

x=98

You deposit $1000 into an account that pays interest compounded monthly. What interest rate do you need to double your money in 10 years? (as a percent, so change it back, write to two decimal places)

Answers

The interest rate required to double your money in 10 years with monthly compounding is approximately 133.27%.

How did we get the value?

To calculate the interest rate required to double your money in 10 years with monthly compounding, you can use the formula:

rate = ( (2 * principal) / principal * (1 + n)^(t12) )^(1/t12) - 1

where

principal = $1000

t = 10 years

n = number of compounding periods per year (12 for monthly compounding)

Plugging in the values we get:

rate = ( (2 * 1000) / 1000 * (1 + 12)^(1012) )^(1/1012) - 1

rate = ( 2 * (1 + 12)^120 )^(1/120) - 1

rate = ( 2 * 169860981.54 )^(1/120) - 1

rate = 1.3327

So, the interest rate required to double your money in 10 years with monthly compounding is approximately 133.27%.

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describe the x-values at which the function is differentiable. (enter your answer using interval notation.) y

Answers

The function is differentiable at these two x-values, the x-values at which the function is differentiable is (-1, 1/3).

The x-values at which the function is differentiable can be found by taking of the function and setting it equal to 0. The derivative of the function y = x3 + 2x2 - 5x + 8 is 3x2 + 4x - 5. Setting this equal to 0 and solving for x yields x = -1 and x = 1/3. So, the x-values at which the function is differentiable is (-1, 1/3).

In order to find the derivative of the function, the power rule was used. The power rule states that the derivative of a function f(x) = xn is f'(x) = nxn-1. Applying this to the function y = x3 + 2x2 - 5x + 8, the derivative is 3x2 + 4x - 5. Next, setting this equal to 0 and solving for x yields two solutions: x = -1 and x = 1/3. Since the function is differentiable at these two x-values, the x-values at which the function is differentiable is (-1, 1/3).

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Choose all of the statements about the quadrilateral and/or the transformed quadrilateral that are correct.
A. The quadrilaterals will be congruent.
B. The quadrilateral will map onto itself.
c. The quadrilateral will now appear in Quadrant IV.
D. The quadrilaterals will have the same orientat
E. The quadrilaterals will be similar but not cong

Answers

The statements about the quadrilateral and/or the transformed quadrilateral that are correct are:

The quadrilaterals will be congruent.

Option A is the correct answer.

What are coordinates in a graph?

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

From the graph,

Quadrilateral WXYZ.

We see that,

Quadrilateral WXYZ is in the III Quadrant.

Step 1:

Rotated 180° about the origin.

This means,

Quadrilateral WXYZ is in the I Quadrant.

Step 2:

Reflection across the y-axis.

This means,

Quadrilateral WXYZ is in the II Quadrant.

Now,

Since there is no dilation the transformed quadrilateral will be congruent.

Thus,

The quadrilaterals will be congruent.

Quadrilateral WXYZ is in the II Quadrant.

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The complete question is:

Quadrilateral WXY will be rotated about the origin and then reflected across the y-axis. Choose all of the statements about the quadrilateral and/or the transformed quadrilateral that are correct.

Charlotte is making 6 pounds of trail mix using raisins and 3 different types of nuts.
The table shows the amounts of different types of nuts that she has.

Answers

To find the exact amount of raisins Charlotte will

D. Add 7/8 pound, 1 1/2 pounds, and 2 3/8 pounds. Then subtract that total from 6 pounds.​

How to find the exact amount of raisins

From the problem, it can be deduced that Charlotte uses all of the almonds, cashews, and peanuts. hence we add the amounts of the nuts

= almonds + cashews + peanuts

= 7/8 + 1 1/2 + 2 3/8

= 19/4

= 4 3/4

hence Charlotte will need 4 3/4 pounds of nuts

The amount remaining for raisings

= 6 pounds of trail mix - total amount of nuts

= 6 pounds - 4 3/4 pounds

= 5/4

= 1 1/4

hence Charlotte will need 1 1/4 pounds of raisins

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complete question

Charlotte is making 6 pounds of trail mix using raisins and 3 different types of nuts. The table shows the amounts of different types of nuts that she has.

Type of Nut Amount (in pounds)

Almonds 7/8

Cashews 1 1/2

Peanuts 2 3/8

Pecans 1 1/4

Walnuts 1 3/4

Charlotte uses all of the almonds, cashews, and peanuts that she has Which of the following explains how she can find the exact amount of raisins she needs?

A Round 7/8 pound to 1 pound, 1 1/2 pounds to 2 pounds, and 2 3/8 pounds to 2 pounds. Then add the rounded almonds and subtract that total from 6 pounds.

B. Add 7/8 pound, 1 1/2 pounds, 2 3/8 pounds, 1 1/4 pounds, and 1 3/4 pounds. Then subtract 6 pounds from that total.

C. Subtract 7/8 pound from 6 pounds, subtract 1 1/2 pounds from 6 pounds, and subtract 2 3/8 pounds from 6 pounds. Then add all three differences.

D. Add 7/8 pound, 1 1/2 pounds, and 2 3/8 pounds. Then subtract that total from 6 pounds.​

a) is y=3/2x proportional and what is the constant of proportionality ?
b) is -x=y proportional and what is the constant of proportionality

Answers

Answer:

In y = 3/2x,     x and y are inversely propotional

In -x = y,      x and y are directly propotional

Step-by-step explanation:

In y = 3/2x, the constant of propotionality is 3/2.

In -x = y, the constant of propotionality is -1.

Cigarette Taxes The increases (in cents) in cigarette taxes for 17 states in a 6-month period are 60, 20, 40, 40, 45, 12, 34, 51, 30, 70, 42, 31, 69, 32, 8, 18.50 )g Find the range, variance, and standard deviation for the data. Use the range rule of thumb to estimate the stand- ard deviation. Compare the estimate to the actual stand- ard deviation.

Answers

Range: 70 - 8 = 62

Variance: To calculate the variance, first find the mean (average) of the data. Then subtract the mean from each data point, square the differences, and average the squared differences.

Mean: (60 + 20 + 40 + 40 + 45 + 12 + 34 + 51 + 30 + 70 + 42 + 31 + 69 + 32 + 8 + 18.50) / 17 = 40.47

Variance: ( (60-40.47)^2 + (20-40.47)^2 + (40-40.47)^2 + (40-40.47)^2 + (45-40.47)^2 + (12-40.47)^2 + (34-40.47)^2 + (51-40.47)^2 + (30-40.47)^2 + (70-40.47)^2 + (42-40.47)^2 + (31-40.47)^2 + (69-40.47)^2 + (32-40.47)^2 + (8-40.47)^2 + (18.50-40.47)^2 ) / 17 = 517.41

Standard deviation: The standard deviation is the square root of the variance. So, the standard deviation is sqrt(517.41) = 22.79

Range rule of thumb estimate: The range rule of thumb estimate for the standard deviation is the range divided by 4. So, the estimate is 62 / 4 = 15.5

Comparison: The range rule of thumb estimate is 15.5, while the actual standard deviation is 22.79. The estimate is not very accurate for this data set, as it is much lower than the actual standard deviation

As you were orginizing your closet you counted 20 shirts and 12 pairs of pants what was the pants to shirts ratio

Answers

The ratio of the given distribution of  pants to shirts is; 5:3

How to solve ratio problems?

The ratio of shirts to pants can be expressed by putting the number of shirts and pants in the following way;

Number of shirts       :        Number of pants

20                               :                   12

Then we will have to reduce this ratio to the lowest term by dividing by the highest common factor of both numbers.

The highest common factor of 12 and 20 is 4 and as such when divided by 4 we get:

20/4 : 12/4

= 5 : 3

This represents the ratio.

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