The pairs of sample size n and population proportion p would produce the greatest standard deviation is D) n = 100 and p is close to 0
What is the difference between the sample and the population?The entire group about whom you want to make conclusions is referred to as a population.
The particular group from which you will gather data is known as a sample. The sample size is always smaller than the population as a whole.
We know, The standard deviation for a population proportion is, [tex]\sigma_p = \sqrt\frac{p(1-p)}{n}[/tex].
Now, The pairs of sample size n and population proportion p would produce the greatest standard deviation for the sampling distribution of a sample proportion p is when n = 100 and p is close to 0 let's say we took
n = 100 and p = 0.1 then [tex]\sigma_p = \sqrt\frac{p(1-p)}{n}[/tex] will be = 0.09 and when n = 100 and
p = 0.5 then [tex]\sigma_p = \sqrt\frac{p(1-p)}{n}[/tex] = 0.05.
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A troop leader recorded whether the members of two troops prefer hiking or swimming. The troop leader plans to create a two-way table to display the results.
Which variables can the troop leader use as the row and column headings of the table?
The troop leader can use the two categories of preference (hiking or swimming) as the row and column headings of the table.
What is the linear relationship?A linear relationship is a connection that takes the shape of a straight line on a graph between two distinct variables - x and y. When displaying a linear connection using an equation, the value of y is derived from the value of x, indicating their relationship.
The troop leader can utilize the two preference categories (hiking or swimming) as the table's row and column headings.
The number of members who prefer each activity can be recorded in the cells of the table to show the distribution of preferences within each troop and the comparison between the two troops.
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Kendall has only quarters and dimes in her pocket. The total value of these coins is $1.50. The equation below can be used to find q, the number quarters, and d, the number of dimes in her pocket. If Kendall has 4 quarters in her pocket, how many dimes are in her pocket? 25g + 10d = 150
Answer: We can use the equation to find the number of dimes in Kendall's pocket:
25g + 10d = 150
25 * 4 + 10d = 150
100 + 10d = 150
10d = 50
d = 5
So Kendall has 5 dimes in her pocket.
Step-by-step explanation:
Miguel went for a drive in his new car. He drove at a speed of 53 miles per hour for 84.8 miles
Time taken by Miguel car to drive is, 1.6 hour.
What is Division method?Division method is used to distributing a group of things into equal parts. Division is just opposite of multiplications. For example, dividing 20 by 2 means splitting 20 into 2 equal groups of 10.
We have to given that;
Miguel went for a drive in his new car. He drove at a speed of 53 miles per hour for 84.8 miles.
We know that;
⇒ Speed = Distance / Time
⇒ Time = Distance / Speed
Here, Speed = 53 miles per hour
Distance = 84.8 miles
Hence, We get;
⇒ Time = 84.8 / 53
⇒ Time = 1.6 hour
Thus, Time taken by Miguel car to drive is, 1.6 hour.
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Can you please help me
m is usually slope
lets analyze this problem
its a linear line, meaning a straight line
i see that y, the output, increases by 4 every time x goes up 2
slope, or m, is equal to the rise/run
rise is 4, run is 2
4/2 = 2
m = 2
this means that for every x, y goes up 2
or, for every 2 x, y goes up 4
hope this helps :)
A toy manufacturer as Mrs. 6% of its products are defective if it produces 550 toys in one day then how many will be defective
Therefore , the solution of the given problem of linear equation comes out to be Defective toys, D = 33 toys.
A linear equation is precisely what?A straightforward regression curve is created using the equation y=mx+b. The y-intercept is m, and the slope is B. The previous sentence is usually referred regarded as a "mathematical formula integrating multiple variables," even though y or y are different parts. Only two variables are present in bivariate linear equations. There are no known solutions to application issues involving linear equations. Y=mx+b.
Here,
If a toy company makes 550 toys in a single day, 33 of those products will be flawed.
Let D represent the faulty toys.
The sum of the toys should be T.
Given the upcoming information:
A day's worth of production results in 550 toys overall.
To calculate how many toys would be flawed after production, use the formula:
=> D = 6/100 * T
Using the parameters provided, we can calculate D as follows:
=> D = 6/100 * 550
=> D = 0.06*550
=> Defective toys, D = 33 toys.
Therefore , the solution of the given problem of linear equation comes out to be Defective toys, D = 33 toys.
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A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 16
Blue 17
Green 5
Yellow 15
Purple 14
If the spinner is spun 200 more times, about how many times would you expect to land on blue? Round your answer to the nearest whole number.
The probability of having a blue in the spin is given as; 17/200.
How to calculate probability?Probability can be calculated as the ratio of the number of favorable outcomes to the number of possible outcomes in a given scenario. It is usually expressed as a decimal or a fraction between 0 and 1.
We know that in this case we are going to look at the table to see the number of times that we land a blue.
If the total number of the outcomes is 200 and the number of the expected outcomes is 17. We would have the probability as P(blue) = 17/200.
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what's something that I need to remember when classifying quadrilaterals
Answer:A quadrilateral is a polygon having four sides, four angles, and four vertices. The word 'quadrilateral' is derived from the Latin words 'quadri,' which means four, and 'latus', which means side. The above image is an example of a quadrilateral. AB, BC, CD, and DA are the four sides of the quadrilateral ABCD.
hope this helps alot<3
a company that manufactures video cameras produces a basic model and a deluxe model. over the past year, 32% of the cameras sold have been of the basic model. of those buying the basic model, 40% purchase an extended warranty, whereas 49% of all deluxe purchasers do so. if you learn that a randomly selected purchaser has an extended warranty, how likely is it that he or she has a basic model?
The probability that a randomly selected purchaser with an extended warranty has a basic model camera is approximately 0.0354
Denote S= Event that a purchase bought a basic camera, then P(S)=0.32
Denote D= Event that a purchase bought a deluxe camera, then
S and D are mutually exclusive.
P(D)=1-P(S)=0.68
P(W/S)=0.4
P(W/D)=4.9
We need to calculate the probability that a randomly selected purchaser who bought an extended warranty has a basic model. By notations, this is equivalent to finding P(S/W).
P(S/W)=P(W/S)*P(S)/P(W)
Since S and D are disjoint and P(S)+P(D)=1,
P(W)=P(W∩S)+P(W∩D)
P(W)=[0.4*0.32]+[4.9*0.68]
=3.61
Hence, our required probability is: P(S/W)=P(W/S)*P(S)/P(W)
[tex]=\frac{0.4*0.32}{3.61}\\=0.0354[/tex]
Hence, the probability that a randomly selected purchaser with an extended warranty has a basic model camera is approximately 0.0354
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a 16 ounce box of cereal costs $4.00, and a 20 ounce box of cereal costs $4.50. which size box has a lower price per ounce?
0.25 is greater than 0.225, the 16 ounce box of cereal has a lower price per ounce than the 20 ounce box of cereal.
The 16 ounce box of cereal has a lower price per ounce than the 20 ounce box of cereal. To calculate the price per ounce of each box of cereal, we can divide the total cost of the box by the total number of ounces in that box. For the 16 ounce box of cereal, the equation would be 4.00/16 = 0.25 per ounce. For the 20 ounce box of cereal, the equation would be 4.50/20 = 0.225 per ounce. Because 0.25 is greater than 0.225, the 16 ounce box of cereal has a lower price per ounce than the 20 ounce box of cereal.
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what is the image of -6 -3 after a reflection over the line y =-x
Answer: i believe its -6, 3
(if im wrong pls inform me :3
Given the following table of values, what is the slope and y-intercept?
Answer:
Y- intercept= (0, -1)
Slope = 2/3
Step-by-step explanation:
Finding the Y-Intercept is pretty much finding the Y value when X is 0
Looking at this table, when x = 0, y is -1. Which means your y intercept is (0, -1)
To find slope, you take two points (x,y) and apply it to the slope formula. We'll do the bottom 4 since those are all nice looking numbers
[tex]slope = \frac{y2 - y1}{x2 - x1} [/tex]
plugging it in...
[tex]slope = \frac{3 - 1}{6 - 3} [/tex]
3-1 = 2 and 6-3 = 3
Keep that in fraction form
[tex]slope = \frac{2}{3} [/tex]
Find the reciprocals of the numbers below.
The reciprocal of 19 is [?]
The reciprocal of 1/6 is[?]
Answer: 1/19, 6/1 (6)
Step-by-step explanation: To find the reciprocal of a fraction, switch the numerator and the denominator (the top and bottom of the fraction, respectively). So, simply speaking, the reciprocal of a/b is b/a. To find the reciprocal of a number, divide 1 by the number. So for example, the reciprocal of 5 would be 1/5
16 days 5 hours 23 minutes. how many minutes and hours come out in total?
Answer:
389 hours and 23 minutes
Step-by-step explanation:
16x24=384
384+=5=389
and 23 minutes
suppose that an usher randomly assigns the seats to the 7 people. find the probability that the three friends are next to each other.
The probability that the three friends are seated next to each other is 1/420
The total number of ways to seat the 7 people is 7! To find the number of ways to seat the three friends next to each other, we need to consider the number of ways to seat the other 4 people around them. So the number of favorable outcomes is 4!
The probability that the three friends are next to each other is then given by the ratio of the number of favorable outcomes to the total number of outcomes: (4!)/(7!) = 4!/5040 = 1/420.
So the probability that the three friends are seated next to each other is 1/420.
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investigators are interested in comparing the mean hours to recovery after surgery for two different procedures. participants were randomized to receive one of the two procedures and then followed to full recovery. what type of study is this?
The study is a randomized controlled trial (RCT) study.
In an RCT study, participants are randomly assigned to either the treatment group or the control group. The treatment group receives the intervention (in this case, one of the two surgery procedures) being studied, while the control group does not receive the intervention.
The participants are then followed to observe the outcome of interest (in this case, the hours to recovery after surgery).
The goal of an RCT study is to determine if the intervention has an effect on the outcome. By randomly assigning participants to the treatment and control groups, any observed differences in the outcome between the two groups can be attributed to the intervention.
This helps to control for other factors that may influence the outcome and reduces the risk of bias in the results.
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Number 8 please will give brainlist and tons of points
The value of x rounded to the nearest tenth is 10.2 units, this is found using trigonometric functions.
What are trigonometric functions?Simply put, trigonometric functions—also referred to as circular functions—are the functions of a triangle's angle. This means that these trig functions provide the relationship between the angles and sides of a triangle. Sine, cosine, tangent, cotangent, secant, and cosecant are the fundamental trigonometric functions.
The triangle is a right-angles triangle and the given angle is 22 degrees.
Taking the cosine function, we have:
cos A = adjacent side/ hypotenuse
cos (22) = x / 11
0.927 = x/11
x = 10.2
Hence, the value of x rounded to the nearest tenth is 10.2 units, this is found using trigonometric functions.
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7 a 96 cm long line segment is divided into 3 parts in the ratio 2:9:5 . what is the length of the smallest part?
The length of the smallest part of the line segment is 12 cm.
The line segment of length 96 cm is divided into 3 parts with the ratio of 2:9:5. The given ratio is a part-to-whole ratio. We can find the lengths of the parts by applying the formula:
Part = Whole × Ratio
Part 1 = 96 cm × (2/16)
= 12 cm
Part 2 = 96 cm × (9/16)
= 54 cm
Part 3 = 96 cm × (5/16)
= 30 cm
Therefore, the length of the smallest part of the line segment is 12 cm.
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A student randomly draws a card from a standard deck of 52 cards. He records the type of card drawn and places it back in the deck. This is repeated 20 times. The table below shows the frequency of each outcome.
Outcome Frequency
Heart 7
Spade 3
Club 6
Diamond 4
Determine the experimental probability of drawing a spade.
0.15
0.25
0.35
0.50
The experimental probability of picking a spade is 0.15 (first option)
What is the experimental probability?Probability is used to determine how likely it is that a random event would happen. The odds that the event would happen has a probability value that lies between 0 and 1.
Experimental probability is based on the result of an experiment that has been carried out multiples times.
Experimental probability of picking a spade = number of times a spade was drawn / number of times the experiment was repeated
3/20 = 0.15
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What is the period of the function?
4
-8
-6
Enter your answer in the box.
-2
2
0
-2
АУ
the
2
4
6
X
The period of the function graphed is 4
What is the period of trigonometric function?The period of a trigonometric function is the length of one complete cycle of the function.
For the common trigonometric functions (sine, cosine, tangent, cotangent, secant, cosecant), the period is 2π for sine and cosine and π for the others.
In the graph the value in the domain for the function to make a complete oscillation is 4 hence the period is 4
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a plane was flying to springfield. with a tailwind, the plane averaged 163 miles per hour. on the return trip, the plane averaged 127 miles per hour flying back in the same wind. what is the speed of the wind? what is the speed of the plane with no wind?
The wind speed and plane speed is 11 and 96 mph.
It is required to find the speed of the plane in still air and the speed of the wind.
What is arithmetic?
Arithmetic is the branch of mathematics that deals with the study of numbers using various operations on them. Basic operations of math are addition, subtraction, multiplication and division. These operations are denoted by the given symbols.
Given:
Let plane speed be "p".
Let wind speed be "w".
According to given question we have,
p + w = 107 mph
p - w = 85 mph
By the method of elimination we get,
2p = 192
p = 96 mph
The plane speed is 96 mph.
Solve for "w":
p + w = 107
96 + w = 107
w = 11 mph
The wind speed is 11 mph.
Therefore, the wind speed and plane speed is 11 and 96 mph.
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Page 1:
a. If two points on a line are A(-5, 7) and B(-2, 1), the rise is
so the slope of the line is
b. If two points on a line are A(10, -3) and B(12, 9), the rise is
run is
the run is
so the slope of the line is
c. If two points on a line are A(4, 6) and B(8,-8), the rise is
run is
Page 2:
so the slope of the line is
a. In the point-slope form of a line.
mix
the clon
and the
, and
and the
a) If two points on a line are A(-5,7) and B(-2,1), the rise -6, the run is of 3, and then the slope is of -2.
b) If two points on a line are A(10,-3) and B(12,9), the rise 12, the run is of 2, and then the slope is of 6.
c) If two points on a line are A(4,6) and B(8,-8), the rise -14, the run is of 4, and then the slope is of -3.5.
How to calculate the slope a linear function?The slope-intercept definition of a linear function is given as follows:
y = mx + b.
For which the parameters are given as follows:
m is the slope, representing the rate of change.b is the intercept, representing the value of y when x = 0.As the slope represents the rate of change of the output relative to the input, it is calculated as the change in the output y divided by the change in the input x, that is, the rise divided by the run.
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What is the measure of angle
XNM?
O 40
O 80
O 90
O 160
Check the picture below.
You spin the spinner once.
3
1
Submit
2
What is P(even)?
Write your answer as a fraction or whole number.
The probability that the spinner will stop at an even value is: P(even) = 1/3.
What is probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events. The degree to which something is likely to happen is basically what probability means. This is the fundamental theory of probability, which is applied to the probability distribution.
The probability that the spinner will stop at an even value is:
P(even) = number of even numbers on spinner / total number on spinner
P(even) = 1 / 3
Hence, the probability that the spinner will stop at an even value is: P(even) = 1/3.
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what is the arc length of an arc with a central angle of 11pi/6 radians in a circle with a radius of 18cm? round the nearest whole number. show all work
The measure of the arc length of the sector will be 103.62 centimeters.
What is the arc length of the sector?Let r be the radius of the sector and θ be the angle subtends by the sector at the center. Then the arc length of the sector of the circle will be
Arc = (θ/2π) 2πr
The central angle is 11π / 6 radian and the radius is 18 cm. Then the measure of the arc length is given as,
Arc = {(11π / 6)/2π} 2π (18)
Arc = 0.9167 x 2 x 3.14 x 18
Arc = 103.62 cm
The measure of the arc length of the sector will be 103.62 centimeters.
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A system of linear equations is given by the graph.
What is the system shown?
O
O
A. y=x
y=-3x - 5
B. y=-x
y =
C. y =
x - 5
x
y=-2 - 5
D. y=-x
y = x - 5
The system of equations is,
y = 2/3(x) and y = (-3/4)x -5.
The correct option is A.
What is the system of equations?One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.
Given:
Two lines are intersecting each other.
Line 1 passes through two points (0, 0) and (3, 2).
The equation of the line is,
y = 2/3(x)
And line 2 passes through (0, -5) and (4, -2).
The equation of the line is,
y = (-3/4)x -5.
Therefore, the equations are y = 2/3(x) and y = (-3/4)x -5.
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X^2-14x=-49
Method 1:Factoring
I’m confused how on earth to do this? If someone could explain I would love that
Step-by-step explanation:
Move terms to the left side[tex]x {}^{2} - 14x = - 49[/tex]
[tex]x {}^{2} - 14x - ( - 49) = 0[/tex]
Use sum-product patternIdentify a, b and c in your equation and then find two numbers that when multiplied equal c, and when added equal b.
[tex]x {}^{2} - 14x + 49 = 0[/tex]
factorWrite your equation in factored form.
[tex](x - 7) {}^{2} = 0[/tex]
Set the factor(s) equal to zeroHere the two factors are the same, so there will be only one solution.
[tex]x - 7 = 0[/tex]
SolveRearrange and isolate the variable to find each solution.
[tex]x = 7[/tex]
need help finding x y and z
Answer:
x= 67
y=40
z=40
Step-by-step explanation:
A=C B=D
67=X Y&?= Z&73
73+ x aka(67) = 140
180-140= y = 40
Beth is making fruit salad. She adds 5 grapes for every 2 strawberries. If she uses 14 strawberries, how many grapes will she use?
The number of grapes for 14 strawberries is 10
How to determine the number of grapesFrom the question, we have the following parameters that can be used in our computation:
She adds 5 grapes for every 2 strawberries.
So, we have the ratio to be
Grapes : Strawberries = 5 : 2
Multiply the ratio by 7
So, we have the following representation
Grapes : Strawberries = 10 : 14
This means that 10 grapes are required for 14 strawberries
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a scientist looks at small pond organisms using a microscope. in his view, one of the organisms is 2.2 cm long when magnified to 100 times its actual size. What is its actual length, in mm?
The actual length of Organism is 0.22 mm.
What is Scale Factor?A scale factor is a numerical value that can be used to alter the size of any geometric figure or object in relation to its original size. It is used to find the missing length, area, or volume of an enlarged or reduced figure as well as to draw the enlarged or reduced shape of any given figure.
Given:
The size of Organisms is 2.2 cm when magnified to 100 times its actual size.
So, the actual size in cm
= 2.2/ 100
= 0.022 cm
Now, we know 1 cm = 10 mm
= 0.022 x 10
= 0.22 mm
Hence, the actual size is 0.22 mm.
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Which of the following is closest to the lateral surface area of a cylinder whose diameter is 18 cm and whose height is 28 cm
The lateral surface area of the cylinder is given by the equation
S = 1,583.36 cm²
What is a Cylinder?A cylinder is a three-dimensional shape consisting of two parallel circular bases, joined by a curved surface. The center of the circular bases overlaps each other to form a right cylinder. The volume of a cylinder is
Volume of Cylinder = πr²h
Surface area of cylinder = 2πr ( r + h )
where r is the radius of the cylinder
h is the height of the cylinder
Given data ,
Let the surface area of the cylinder be represented as S
Now , the diameter of the cylinder d = 18 cm
So , the radius of the cylinder r = 18/2 = 9 cm
The height of the cylinder h = 28 cm
And , the lateral surface area of cylinder = 2πrh
Substituting the values in the equation , we get
The lateral surface area of cylinder = 2 ( 3.14 ) ( 9 ) ( 28 )
On simplifying the equation , we get
The lateral surface area of cylinder = 504π cm²
The lateral surface area of cylinder = 1,583.36 cm²
Hence , the lateral surface area is 1,583.36 cm²
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