Variability ? I'm confused

Answers

Answer 1
Variability in statistics… Let's see...dispersion is the degree to which a percentage is stretched or even squeezed. Some examples of measures of statistical “dispersion” ( or distribution) are the variance, standard deviation, and interquartile span. Like when the variance of data in a set is big; the data is gretaoy dispersed. (Variance is the measure of “variability” and for shorter terms of what I said, it is basically computed by taking the average of squared deviations from the thing.) hope I helped ask me for any questions I’m a 5th grader who likes science. Sorry I took to long to respond I had to look back at my notes for a better explanation.

Related Questions

what is the percent increase from 18 to 26

Answers

How much has it increased by?
26-18 = 8

What percentage is 8 of 18?
Or how many 8s are in 18?

8/18 = 0.44444

Convert to percentage

0.44* 100 = ~44%

CHECK:

18 * 0.444444 = 7.92 ~ 8

So 18 + 8 = 26

I need help ya'll please:)​

Answers

Answer:

Step-by-step explanation:

Please take a clearer picture couldnt read it well

In each circle, find the value of x. Please help

Answers

Answer:

x = 47°

Step-by-step explanation:

First see that Angle W is 90°. Either because T is the center and LS is a diameter. Or because Arc LCS is 180° so Angle W is half that = 90°

Then, see Triangle WSL. The angles in a triangle add up to 180°

90° + x + x-4 = 180°

Subtract 90°

x + x - 4 = 90

Combine the x's

2x - 4 = 90

Add 4

2x = 94

Divide by 2.

x = 47

URGENT HELP 20 points

Answers

Answer:

5 3/12 cm^2

Step-by-step explanation:

I just put it in the calculator.

An empty container in the shape of a cube 6 inches deep is filled with plastic cubes.
How many plastic cubes measuring 1 inch across each face will it take to fill the
container?
Enter your answer in the box.

Answers

The right answer would be 216

1) 6*6=36

2)36*6=216

50 PTS PLS HELP! Data Set 1 has a mean of 152.7 and a MAD of 2.5.

Data Set 2 has a mean of 170.2 and a MAD of 1.7.

What can be concluded about the two distributions?

Select each correct answer.


The means-to-MAD ratio is 10.

The distributions are different.

The distributions are somewhat similar.

The means-to-MAD ratio is 7.

Answers

the means to and reroof is 10

the distributions are somewhat similar

Dempsey Railroad Co. is about to issue $400,000 of 10-year bonds paying an 11% interest rate, with interest payable annually. The discount rate for such securities is 10%. Click here to view the factor table. (For calculation purposes, use 5 decimal places as displayed in the factor table provided.) How much can Dempsey expect to receive for the sale of these bonds? (Round answer to 0 decimal places, e.g. 2,525.) Dempsey can expect to receive

Answers

The amount Dempsey can expect to receive from the sale of the bonds is $424,578.27.

What is the amount Dempsey can expect to receive from the sale of the bonds ?

The amount that would be recieved from the sale of the bond is the present value of the bond. Present value is the sum of discounted cash flows.

Present value can be determined using a financial calcualtor:

Cash flow each year from year 1 to 10 = 0.11 x 400,000 = 44000Cash flow in year 10 = $400,0000 I = 10%

PV = $424,578.27

To learn more about present value, please check: https://brainly.com/question/26537392

Please help........ i need help

Answers

Answer:

x = 30

Step-by-step explanation:

x/2 = 12 + 3

x = 2(12+3)

x = 30

help pls
10 points
Brainleist
thanks

Answers

Answer: x=12

Step-by-step explanation:

The two angles provided are on a straight line

A straight line is 180 degrees, so we can add the two angles to make 180 and solve for x

[tex]10x-20+6x+8=180[/tex]

Simplify

[tex]10x-20+6x+8=180\\10x+6x-20+8=180\\16x-12=180[/tex]

Add 12 on both sides

[tex]16x-12=180\\16x-12+12=180+12\\16x=192[/tex]

Divide both sides by 16 to isolate x

[tex]16x=192\\\frac{16x}{16} =\frac{192}{16} \\x=12[/tex]

Identify the coefficient of 5r2

Answers

coefficient of 5r² is 5

hope it helps...!!!

A swimming pool is shaped like a right rectangle prism. the pool is 36 ft long and 20 ft wide. What is the total amount of water in cubic ft,needed to fill tje pool to a depth 4 ft.

Answers

Answer:

2880 ft³

Step-by-step explanation:

T o find the total amount of water that is needed to fill the pool, you have to find the volume of the pool.

Formula to find the volume of a rectangle prism is :

Volume = length × width × height

Let us solve now.

Volume = length × width × height

Volume = 36 ft × 20 ft × 4 ft

Volume = 2880 ft³

Therefore, 2880 ft³ of water is needed to fill the pool.

The weight of a blue whale is about 250,000 pounds. Write this number in scientific notation

Answers

Answer:

250÷50=3 because I have a great day and I will be in the 3 1 4 a few days ago a friend of ours was the only thing

Step-by-step explanation:

yes maybe no more options visit in the future please reply with your family

A university class has 22 students: 3 are nursing majors, 9 are psychology majors, and 10 are business majors. (Each student has only one of these majors.) The professor is planning to select two of the students for a demonstration. The first student will be selected at random, and then the second student will be selected at random from the remaining students. What is the probability that the first student selected is a nursing major and the second student is a business major?

Answers

Answer:

27/462

OR

.058

Step-by-step explanation:

the probability that the first student, selected at random, is a nursing student is 3/22.

the probability that the second student, selected at random from the remaining students, is an accounting major is 9/21.

the probability the first student chosen is a nursing student and the second student chosen is an accounting major is therefore 3/22 * 9/21 = 27/462.

The graph shows a wolf population which has been growing exponentially.
200
160
120
uonejndod yjom
80
40
5
years since population was measured
a. What was the population when it was first measured?
Type the answer in the box below.
b. By what factor did the population grow in the first year?
Type the answer in the box below.

Answers

PART A: 100 wolves population

PART B: 6/5

Answer:

Part A: 100 wolves population.

Part B:6/5

Step-by-step explanation:.

What is the equation in slope-intercept form of the line that passes through the points (-20, 5) and (-10, 6)

Answers

Answer:

[tex]y=\frac{1}{10}x + 7[/tex]

Step-by-step explanation:

Hi there!

We are given the points (-20, 5) and (-10, 6)

We want to write the equation of the line in slope-intercept form

Slope-intercept form can be written as y=mx+b, where m is the slope, and b is the y intercept

First, let's find the slope of the line

The formula for the slope (m) calculated from 2 points is [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where [tex](x_1, y_1)[/tex]and [tex](x_2, y_2)[/tex] are points

We have everything we need to find the slope, but let's label the values of the points to avoid confusion and mistakes

[tex]x_1=-20\\y_1=5\\x_2=-10\\y_2=6[/tex]

Substitute these values into the formula to find the slope

m=[tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

m=[tex]\frac{6-5}{-10--20}[/tex]

Simplify

m=[tex]\frac{1}{-10+20}[/tex]

m=[tex]\frac{1}{10}[/tex]

The slope (m) of the line is 1/10

We can substitute this value into the formula y=mx+b

y = [tex]\frac{1}{10}x[/tex] + b

Now we need to solve for b

As the equation passes through the points (-20, 5) and (-10, 6), we can use either point to solve for b.

Taking (-20, 5) for instance:

Substitute -20 as x and 5 as y:

5=[tex]\frac{1}{10}(-20)[/tex] + b

Multiply

5=-2+b

Add 2 to both sides

7=b

Substitute 7 as b.

y=[tex]\frac{1}{10}x + 7[/tex]

Hope this helps!

See more on this topic here: https://brainly.com/question/27147899

the last answer is 35 I just could not fit it in the pic​

Answers

Angle beside C is 145 so C is 180 -145=35
So the sum of the triangles angles is 180
Therefore 180-35=145
So the sum of angle A and B is 145

Determine the number of solutions of each system of equations.

Answers

Answer:

no solutions

Step-by-step explanation:

x+y = 5

-2x-2y = 10

Multiply the first equation by 2

2x+2y =10

Add this to the second equation

2x+2y =10

-2x-2y =10

0 =20

This is not true so there are no solutions

7 raise to -2 x 3 raise to 2 = 3by7 raise to 4x

Answers

7^-2 x 3^2 = 3 x 7^4x should be your equation.

Exact form: x = 3/117649Evaluate the exponentEvaluate the exponentMultiply the numbersEvaluate the exponentMultiply the numbersDivide both sides by the same factorSimplifyDecimal form: x = 2.54995792 10^5

I don't know if this is what you were looking for but I hope it helps.

Utilize graphing to find the solution to
the following system of equations.
y = x-7 AND y = -x + 1
([?], [])
Enter

Answers

Answer:

(4, -3)

Step-by-step explanation:

To solve this with graphing all you need to do is enter both equations in a graphing calculator (you can use desmos online) and then find the point where both lines intersect.

What is the amplitude of the function? Identify the amplitude of a periodic function from its graph. 4 3 2 1

Answers

The amplitude of a periodic graph of a function is 2 because the amplitude of the function is half of the difference between the maximum and minimum values of a function.

What is a function?

It is defined as a special type of relationship and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a graph of a function(refer to attached picture)

We know the amplitude of the function is given by:

[tex]\rm Amplitude \ of \ f \ = \frac{1}{2} |max \ f -min \ f|[/tex]

As we can see in the graph the maximum value is 0 and

the minimum value of a function is -4, thus the amplitude

[tex]\rm Amplitude \ of \ f \ = \frac{1}{2} |0 -(-4)|[/tex]

The amplitude of f = 2

Thus, the amplitude of a periodic graph of a function is 2 because the amplitude of the function is half of the difference between the maximum and minimum values of a function.

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

PLEASE ANSWER AS SOON AS POSSIBLE WILL GIVE BRAINLESS TO THE FIRST CORRECT PERSON!!!

Find the values of x and y. Write your answers in the simplest form.

Answers

Answer:

Around x = 3 y = 6

Step-by-step explanation:

I'm not sure if you need to round to the nearest whole or hundreth or tenth

NEED HELP WITH THIS MATH PROBLEM QUICK!!!

Answers

Answer:

[tex]\implies m\angle A =42\degree[/tex]

Step-by-step explanation:

Quadrilateral ABCD is inscribed in circle with center O.

-> Quadrilateral ABCD is cyclic.

Opposite angles of a cyclic quadrilateral are supplementay.

[tex]\implies m\angle B + m\angle D = 180\degree[/tex]

[tex]\implies (2x)\degree + (3x-5)\degree = 180\degree[/tex]

[tex]\implies (5x-5)\degree = 180\degree[/tex]

[tex]\implies 5x-5= 180[/tex]

[tex]\implies 5x= 185[/tex]

[tex]\implies x= \frac{185}{5}[/tex]

[tex]\implies x= 37[/tex]

[tex]\implies m\angle A =(x+5)\degree[/tex]

[tex]\implies m\angle A =(37+5)\degree[/tex]

[tex]\implies \huge{\orange{m\angle A =\boxed{42}\degree}}[/tex]

what is the difference between 3/4 and 2 1/4

Answers

Answer:

3/4 simplified is 3/4 but when 2 1/4 is simplified it is 9/4. Off the bat we know there is a big difference. Also, 2 and 1/4 is irrational and 3/4 and rational.

Find the secant of ZI.
H
80
89
39

Answers

Answer:

See below

Step-by-step explanation:

[tex] \sec \: I = \frac{HI}{IJ} \\ \\ \implies \: \sec \: I = \boxed{\frac{89}{39} }[/tex]

Which equation can be used to determine the distance between the origin and (-2, -4)?

Answers

It is the 2 answer ( sorry if I am wrong )

Given: mMEJ=30°,
mMFJ= 50°
Find: mKL, mMJ

Answers

Applying the angles of intersecting secants theorem, the measures of the arcs are:

m(KL) = 20°; m(MJ) = 80°.

What is the Angles Intersecting Secants Theorem?

When two secants intersect and form an angle outside the circle, the measure of the angle formed is half the positive difference of the measures of the intercepted arcs.

Given the following:

m∠MEJ = 30°m∠MFJ = 50°

m∠MEJ = 1/2(MJ - KL)

30 = 1/2(MJ - KL)

60 = MJ - KL

KL = MJ - 60

m∠MFJ = 1/2(MJ + KL)

50 = 1/2(MJ + MJ - 60)

100 = 2MJ - 60

2MJ = 100 + 60

2MJ = 160

MJ = 160/2

MJ = 80°

KL = MJ - 60 = 80 - 60

KL = 20°

Thus, applying the angles of intersecting secants theorem, the measures of the arcs are:

m(KL) = 20°; m(MJ) = 80°.

Learn more about angles of intersecting secants theorem on:

https://brainly.com/question/1626547

Reread the problem described in Question 10.5 on page 191.What form should H0 and H1 take if the investigator is concerned only about salary discrimination against female members? If this hypothesis test supports the conclusion of salary discrimination against female members, a costly class-action suit will be initiated against American colleges and universities. Under these circumstances, do you recommend using the .05 or the .01 level of significance? Why?

Answers

The form that the null and alternative hypothesis should take if the investigator is concerned only about salary discrimination include U = $82000 and U < $82000.

How to explain the hypothesis?

The alternative hypothesis is the claim of the test. Here, the investigator wants to test whether the average salary of females is less than $82500.

Assuming the hypothesis test supports the conclusion of salary discrimination against female members, the 0.01 level of significance will be recommended.

Learn more about hypothesis on:

https://brainly.com/question/11555274

What is 2 x 10/8 in simplest form 4 grade

Answers

The fraction is 5/2

The decimal is 2.5

What is the volume of this cone?
Use a = 3.14 and round your answer to the nearest hundredth
13 mm
6 mm
how do i get the answer

Answers

Pi times radius squared times (height÷3)

if radius is 6 then 490.09

if radius is 13 then 1061.86

What is 3^8*3^3/3^2 simplified?

Answers

Answer:

6561*27/9

Step-by-step explanation:

3^8=6561

6561*27=177,147

177,147/9=19,683

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