you want to make a graph to display the distribution of the salaries of the 1,700 professors at a large university. the best choice is a

Let the random variable p represent a randomly selected prize amount the expected value of p is $3.90  by using probability.

Prize                $1          $5            $10            $20              $50

Probability     0.60      0.30         0.05           0.04              0.01

It is based on the possible chances of something to happen. The theoretical probability is mainly based on the reasoning behind probability. For example, if a coin is tossed, the theoretical probability of getting a head will be ½.

The expected value is defined as the the sum of each outcome is multiplied by its probability.

p=x1p1+x2p2+x3p3+x4p4

p=1.0.60+5.0.30+10.0.05+20.0.04

p=3.90

Therefore, the correct option is A, i.e. $ 3.90 is the expected value of P.

Three Types of Probability

Classical: (equally probable outcomes) Let S=sample space (set of all possible distinct outcomes).

Relative Frequency Definition.

Subjective Probability.

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The youngest child is Jade.

The expression that represents Jane's age is 2n.

The oldest child is Jem.

Jade is 12 years old

The equation that represents the sum of ages is 5n - 5 = 55.

Jade's age = n

Jane's age = 2 x n = 2n

Jem's age = 2n - 5

Sum of the ages:

n + 2n + 2n - 5 = 55

5n - 5 = 55

Jade's age can be determined using the above equation:

5n = 55 + 5

5n = 60

n = 60 / 5

n = 12

To determine Jane and Jem's age, substitute for n in the equation that represents their ages.

Jane's age = 2 x 12 = 24

Jem's age = 2(12) - 5

= 24 - 5

= 19

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Answer:

3 + √2 best believe it haha

The correct answer is the signs for r and b are the same (+ or ). The slope b and the correlation r don't necessarily have the same values, but they always share the same sign.

The idea employed in the issue is

1.Correlation

2.Regression

Correlation: Correlation analysis is used to gauge how strongly two variables are related. The symbol for the correlation coefficient is r.

Shape: Whether the data points follow a linear pattern or some other complex curves is indicated by the association's form. If it seems that a line would adequately summarise the overall trend in the data, then do so. The relationship between the two variables is then linear.

The appropriate statement can be found below:

The determination of the standard deviation between the two variables influences how a least-squares linear regression function slopes, and in a similar way, how the sample correlation coefficients are interpreted.

By examining the sign of the regression slope and the correlation coefficient, which depend on the standard deviation between the two variables, the proper conclusion can be drawn.

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Answer:

Yes. Both ratios can be reduced down to 1/2.

Step-by-step explanation:

Hope it helps!

For two numbers to be proportional, they need to be directly increasing or decreasing in a constant ratio.

To simplify these ratios, we can use division.

So, 7: 14 simplified is 1: 2.

So, 4: 8 simplified is 1: 2.

If these ratios are both simplified to equal 1 :2, they are proportional.

Answer:

98

Step-by-step explanation:

180 means supplementary so we subtract that by 82 which gives us 98

Answer:

Below

Step-by-step explanation:

The two supplementary angles sum to 180 °

180 - 82 = other angle = 98°

Answer:

D

Step-by-step explanation:

Given the above Trigonometric expressions,

1) θ = 35°

2) θ =62°

3) θ = 90-y°

Trigonometric functions are real functions in mathematics that connect an angle of a right-angled triangle to ratios of two side lengths. They are widely utilized in all geosciences, including navigation, solid mechanics, celestial mechanics, geodesy, and many more.

There are six expressions of an angle that are often used in trigonometry. Their names and acronyms include

For A)

Sin(55) = cos (θ)

sin (55)= sin(90-θ)

Compare both sides

55 = 90 - θ

θ = 90 - 55

θ = 35°

For B)

Sin(θ) = Cos (28)

angle θ would be  Arc sin (cos (28))

Thus,

θ =  62°

For C)

Cos(y) = sin (θ)

Angle θ = arc sin ( cos (y) )

Thus,

θ = 90 - y


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If the area to the right of z, given that it is a standard normal random variable, is 0.1112, then the value of z is 1.22. The answer is C.

A standard normal random variable has a mean of 0 and a standard deviation of 1. The area to the right of a value for a standard normal random variable can be found using a standard normal table or a calculator with a normal cumulative distribution function (CDF).

Given that the area to the right of z is 0.1112, we can use a standard normal table or normal CDF calculator to find the value of z such that the area to its right is 0.1112. This value will be approximately equal to 1.22.

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Answer:

Hi Elm!

Step-by-step explanation:

In a polygon, the sum of the measures of the interior angles and the sum of the measures of the exterior angles of adjacent angles are related. Specifically, the sum of the measures of the interior angles of a polygon is equal to (n - 2) times 180 degrees, where n is the number of sides in the polygon. For a given interior angle and its adjacent exterior angle, the measure of the exterior angle is equal to the sum of the interior angle and 180 degrees.

Step-by-step explanation:

I hope this helps a bunch! Make sure to rephrase!

Answer:

75% decrease

Step-by-step explanation:

88 - 66 = 22

66 is 75% of 88

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{Percentage\ change \ formula\ is: \bf \dfrac{(v_2 - v_1)}{|v_2|}\times 100 = \boxed{\mathsf{\bf percentage \ change}}}[/tex]

[tex]\textsf{Your equation:} \mathbf{\dfrac{(22 - 88)}{|88|}\times 100}[/tex]

[tex]\mathbf{\dfrac{(22 - 88)}{|88|}\times 100}[/tex]

[tex]\mathsf{= \mathbf{\dfrac{(22 - 88)}{|88|}\times \dfrac{100}{1}}}[/tex]

[tex]\mathbf{= \dfrac{-66}{88}\times\dfrac{100}{1}}[/tex]

[tex]\mathbf{= \dfrac{-66\div 11}{88\div11}\times\dfrac{100}{1}}[/tex]

[tex]\mathbf{= \dfrac{-6}{8}\times \dfrac{100}{1}}[/tex]

[tex]\mathbf{= \dfrac{-6\div2}{8\div2}\times \dfrac{100}{1}}[/tex]

[tex]\mathbf{= \dfrac{-3}{4} \times \dfrac{100}{1}}[/tex]

[tex]\mathbf{= \dfrac{-3\times100}{4\times1}}[/tex]

[tex]\mathbf{= \dfrac{-300}{4}}[/tex]

[tex]\mathbf{= -300\div4}[/tex]

[tex]\mathbf{= -75}[/tex]

[tex]\mathbf{\rightarrow -75\%\ will\ be\ your\ change}[/tex]

[tex]\mathbf{\rightarrow 75\%\ will \ be\ your\ percentage\ change\ that\ decreased}[/tex]

[tex]\huge\text{Therefore your answer should probably be:}[/tex]

[tex]\huge\boxed{\mathsf{75\% \ decrease}}\huge\checkmark[/tex]

[tex]\huge\text{So, your I guess the answer with the choices}\\\\\huge\text{you have provided we will be: }\\\\\huge\boxed{\textsf {77.3\% (Option C.)}}}\huge\checkmark[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

The value of x that makes ABC~ ADEF is 4

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

AABC~ ADEF.

So, we have the following equivalent ratio

6 : 2x = 24 : 32

So, we have

2x/6 = 32/24

Make x the subject

So, we have the following representation

x = 6 * 32/(24 * 2)

Evaluate the expression

x = 4

Hence, the value is 4

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Note that the PQ table are attached according. Note that Heather's mom's statement is written in symbolic form as: ~p -> ~q.

Note that in situation 1:
according to the P Q table, the statement ~p -> ~q is false because the row where p is false and q is true (which corresponds to Heather not putting money into the savings account each month but still being able to take a vacation) evaluates to false.

While in Situation 2:

From the P Q table, the statement ~p -> ~q is false because the row where p is false and q is true (which corresponds to Heather not putting money into the savings account each month but still being able to take a vacation) evaluates to false.

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If the dimension of brick is  1×1×6 and that of box is 8×8×8 , then yes , it is  possible to pack 85 bricks in the box .

We first calculate the Volume of the box and Volume of the brick ;

The volume of one brick is calculated as 1×1×6 = 6 cubic inches,

so 85 bricks would have a total volume of = 6×85 = 510 cubic inches.

The Volume of the box is 8×8×8 = 512 cubic inches,

we get that the volume of the box is greater than volume of cube , then it is possible to fit 85 bricks of volume 510 cubic inches into a box of volume 512 cubic inches.

Therefore, it is possible to pack 85 bricks of dimension 1×1×6 into a box of dimension 8×8×8 .

The given question is incomplete , the complete question is

Can you pack 85 bricks of dimension 1×1×6 into a box of dimension 8×8×8 ? Explain how you got your answer.

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The probability of eating both poisoned apples if you randomly eat 3 out of the five apples without replacement is 1/10 or 0.1.

To calculate this probability, we use the formula for combinations of n objects taken r at a time, (nCr) which is equal to n!/r!(n-r)!. In this example, n = 5 and r = 3, so the formula reduces to 5!/3!(5-3)! = (5*4*3)/(3*2*1) = 10. This means that there are 10 different combinations of 3 apples, out of the five, that can be chosen. Since only two of the apples are poisoned, the probability of eating both of the poisoned apples is 2/10 or 0.1.

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When firing a handgun , you should hold the handgun (d) at arm's length , from the body .

When firing a handgun, it is recommended to hold it at arm's length, from your body. This allows for proper control and aim of the firearm, as well as providing a buffer between you and the potential dangers of the discharge.

Holding the handgun too close to your body can also interfere with accuracy and control, as your arms may obstruct the movement of the gun. It's important to follow manufacturer guidelines and seek proper training and follow all safety procedures when handling handgun to ensure responsible and safe use.

The given question is incomplete , the complete question is

When firing a handgun, how far should you hold it from your body?

(a) 9 inches

(b) one foot

(c) eighteen inches  

(d) at arm's length

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a) 60 selection excluded Connie. b) 24 selections in which neither Ben nor Francisco is an officer. c) 24 selection in which both Ben and Francisco are officers. d) 36 selections in which Dolph is an officer or Francisco is not an officer. e) 20 and 60 in which Dolph either selected or not.  

A chairperson, secretary, and treasurer are to be chosen by a six-person committee made up of Alice, Ben, Connie, Dolph, Egbert, and Francisco. Their Calculations are a) 5 × 4 × 3 = 60. (b) 4 × 3 × 2 = 24 (c) 3 × 2 × 4 = 24 (Ben can choose from 3 slots, Francisco has 2 spots remaining to choose from, and there are 4 people available for the final position.)  (d) 3 × 4 × 3 = 36 (Dolph is eligible for three seats, after which there are four more members to pick from.) Part e will be the sum of 2 cases: Case 1 : Dolph is a chairperson. Number of ways = 1 × 5 × 4 = 20. Case 2: Dolph isn't elected. Number of ways for this = 5 × 4 × 3 = 60. Hence a total of 80 selection for part e.

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Yes, it is widely known that 100-200 high-frequency words account for about 50% of the words used in school texts. This highlights the importance of explicitly teaching these words to students in order to improve their reading fluency and comprehension.

Among these high-frequency words, almost 25% are permanently irregular, meaning that they do not follow standard spelling and pronunciation rules. This makes it even more important for students to learn these words through direct and systematic instruction, as they can greatly impact their reading and writing abilities. By focusing on these high-frequency words, educators can help students build a strong foundation of vocabulary knowledge, which can lead to improved reading outcomes and success in school.

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6. The costs are given as follows:

7. The linear function is defined as follows:

y = 20 + 2x.

The slope-intercept definition of a linear function is given as follows:

y = mx + b.

In which:

From the table, when x = 0, y = 20, hence the intercept b is given as follows:

b = 20.

When x increases by one, y increases by two, hence the slope m is given as follows:

m = 2.

Then the function giving the cost y of x kites is defined as follows:

y = 2x + 20.

The costs are given obtaining the numeric values, replacing the lone instance of x in the equation by the number of kites, thus:

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There are 2 gravel is in one dump tuck.

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;

4 dump trucks carry 8 tons of gravel evenly between them.

Hence, Number of gravel in one dump truck = 8 / 4

                                                                      = 2

Thus, There are 2 gravel is in one dump tuck.

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The population size after 5 hours is 28.2 million.

Exponential functions are functions where the independent variable, x is in the exponent.

Given that,

Constant relative growth rate, r = 0.4419

Initial population, A = 3.1 million

Time = 5 hours

P = A e^(rt)

P = 3.1 e^(0.4419 × 5)

  = 3.1 × 9.111

  = 28.245 million ≈ 28.2 million

Hence the population after 5 hours will be 28.2 million.

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Answer:

9

Step-by-step explanation:

Think about u coming 3 + 3 then subtract it to 10 then u will get 1 more then yea u get 9

The simplified form of the expression is (x - 2) / (x - 3).

Expressions are mathematical statements which consist of two or more terms and terms are connected to each other using mathematical operators like addition, multiplication, subtraction and so on.

Given expression is (1 - [tex]\frac{2}{x}[/tex] ) / (1 - [tex]\frac{3}{x}[/tex] ).

Cross multiplying both the denominator and numerator of the expression,

1 - [tex]\frac{2}{x}[/tex] = (x - 2) / x and 1 - [tex]\frac{3}{x}[/tex] = (x - 3) / x

(1 - [tex]\frac{2}{x}[/tex] ) / (1 - [tex]\frac{3}{x}[/tex] ) = [(x - 2) / x] / [(x - 3) / x]

                      = (x - 2) / (x - 3)

Hence the expression can be simplified as (x - 2) / (x - 3).

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Let x represent the number of chickens and y represent the number of sheep.There is no proper system equation so such farms does not exist as this equations contradict.

A system of equations is a set of multiple equations with multiple variables that are related to each other. It is a mathematical problem that requires a solution for each equation in the system.

The total number of legs on the farm is given as "4x + 2y". What's more, we are told that the total number of animals is "x + y".

4x + 2y means the total legs

x + y = the number of total of animals

We'll now use the Elimination method to identify x and y.

One method is to multiply the first equation by 2 and subtract it from the second:

(2) * legs = (4x + 2y)

2x + 2y = the total number of animals

Legs = (2x + 2y)

0 = number of legs - 2 * the amount of animals

When we solve for the number of animals we get:

animal count = legs / 2

So, if we connect this back into either equation, we can find x and y.

Let's look at the first equation:

4x + 2y means the total legs

legs / 2 = x + y

When we substitute legs / 2 in the second equation for "number of animals," we get:

legs / 2 = x + y

Now we'll use substitution to find x. In the first equation, we'll substitute x = legs / 2 - y:

4x + 2y means the total legs

legs = 4(legs / 2 - y) + 2y

legs = 2 * legs - 4y + 2y

2 times legs = legs

There are no solutions due to this contradiction, and no such farm exists under the given conditions.

As a result, the answer to the system of equations is that no such farm occurs under the given conditions.

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Answer:

d)

Step-by-step explanation:

50-18=324

32÷50=0,64

350×0,64=224

Let A1,A2,A3,A4 be the 4 A.M.s between 4 and 19.

Then,

4,A1, A2,A3, A4,19 are in A.P. of 6 terms.

An=a+(n−1)d

a6=19=4+(6−1)d

Or d = 3 ...... (i)

Now,

A1=a+d=+3=7

A2=A1+d=7+3=10

A3=A2+d=10+3=13

A4=A3+d=13+3=16

The 4 A.M.s between 4 and 19 are 7, 10, 13, 16.

Arithmetic is a fundamental branch of mathematics that studies the characteristics of classical operations on numbers such as addition, subtraction, multiplication, division, exponentiation, and root extraction. The term "arithmetic" derives from the Greek arithmtik (tekhn), which means "(art) of counting," and from the Greek arithmos, which means "number.".

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Step-by-step explanation:

a.) So he has 13 coins and those coins are nickels and quarters. If we let n be nickels and q be quarters

n + q = 13 because the total number of quarters plus nickels is 13

The coins have a total value of $2.05

Nickels are 0.05 cents and quarters are 0.25 cents, which means

0.05n + 0.25q = $2.05

Making your system of equations

[tex]n + q = 13 \\ 0.05n + 0.25q = 2.05[/tex]

Answer:

a.) So he has 13 coins and those coins are nickels and quarters. If we let n be nickels and q be quarters

Step-by-step explanation:

The standard normal distribution is a normal distribution of standardized values called z-scores.

A z-score is measured in units of the standard deviation. If a random variable is normally distributed and follows the parameters mean (mu) and standard deviation (sigma), the z-score is calculated as the difference between the value of the random variable and the mean divided by the standard deviation . The cumulative distribution function (CDF) of a standard normal variable is used to find the fraction of scores that lies between two given values. To determine the fraction of scores, one can use the CDF to find the area under the standard normal distribution curve between the given values.

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Answer:

So, the solution is x = -3 and y = 4. This means that the two lines intersect at the point (-3, 4)

Step-by-step explanation:

The given equations represent two lines in a two-dimensional plane. To find the solution for the values of x and y that satisfy both equations, we can use the method of substitution or elimination.

Using substitution, we can solve for x or y in one of the equations and substitute the result into the other equation. Let's solve for y in the second equation:

x + y = 1

y = -x + 1

Now, substitute this expression for y into the first equation:

-x + (-x + 1) = 7

-2x + 1 = 7

-2x = 6

x = -3

Finally, we can use the expression for y that we derived earlier to find y:

y = -x + 1 = -(-3) + 1 = 4