How do you find the variability of a sample?

Answers

Answer 1

Answer:

Step 1: Calculate the mean (the average weight).

Step 2: Subtract the mean and square the result.

Step 3: Work out the average of those differences.

Step-by-step explanation:

Answer 2
Definition of Sample Variance
Step 1: Calculate the mean (the average weight).
Step 2: Subtract the mean and square the result.
Step 3: Work out the average of those differences
Info abt the formula: The variability of a data set as measured by the number R=xmax−xmin. The variability of sample data as measured by the number √Σ(x−ˉx)2n−1.

Related Questions

For what value of x are AXYZ and AJKL similar?
х
(3x)
34
Y
Z
Not drawn to scale
a. * = 12
b. x =18
0.
36
d x = 54

Answers

Answer:

I believe x = 12

Step-by-step explanation:

If the triangles were similar then they would have the same angle measures.

Steps:

Add angle K and L: 90 + 54 = 144

Subtract the added angles from 180 to find angle J: 180 - 144 = 36

Angle J is similar to angle X so, divide 36 by 3: 36/3 = 12

x = 12

Explain why y=x+2.5?

Answers

Answer:

Ok I can definitely answer this but maybe add a picture or a little problem for us because we can’t answer the question without something to tell us what the question Is about. if you post another one of those with a picture then I will be more than glad to answer it.

I NEED HELP ASAP, NO LINKS!!! WILL GIVE BRAINIEST!!

Answers

1 is a translation down 8 units and right 5 units. 2 is a translation down 9 units and right 2 units

A local school needs to paint the floor of its theater room, where the length of the floor, x, is at least 12 feet. The width of the floor is 4 feet less than the length. It will have a stage and a closet, and the remaining area of the floor will be painted. The dimensions are shown in the diagram:

rectangle with length of x ft and width of x minus 4 ft, right triangle inside labeled stage with height of x minus 4 ft and base of 6 ft, rectangle inside labeled closet with length of 7 ft and width of 2 ft, the rest of the rectangle is labeled floor

Let A represent the painted area, in square feet, of the floor. Choose the correct equation to solve for area (A).

A = x(x − 4) + 0.5(6)(x − 4) + 2(7)
A = x(x − 4) − 0.5(6)(x − 4) − 2(7)
A = x(x − 4) − (6)(x − 4) − 2(7)
A = x(x − 4) + (6)(x − 4) + 2(7)

Answers

Answer: A=x(x-4)-0.5(6)(x-4)-2(7)

Step-by-step explanation:

A=x(x-4)-(0.5(6)(x-4) + 2(7))

A=x(x-4)-0.5(6)(x-4)-2(7)

Answer:

A = x(x − 4) − 0.5(6)(x − 4) − 2(7)

Step-by-step explanation:

i took the test-

Someone help me pls. Theoretical Probability of compound events.

Answers

Answer:

Step-by-step explanation:

this type of probability is very confusing to most people.  You are in good company. :)

1 ( cheese )  ( salsa) ( veggie )

2 (Burrito) (taco) (wrap)

3

Burrito w/ cheese  = 1/9

taco or wrap w/ salsa = 1/9

so it's (1/9) * (1/9) = 1/81  

best of luck Destinee

A shipment to a warehouse consists of 3,750 MP3 players. The manager chooses a random sample of 50 MP3 players and finds 5 that are defective. How many MP3 players in the shipment are likely to be defective?

Answers

Answer:

[tex]375[/tex]

Step-by-step explanation:

[tex]\frac{50}{3750}[/tex]=[tex]\frac{1}{75}[/tex]

[tex]5[/tex]×[tex]75=375[/tex]

The answers is 375 I did it

You buy a backpack for $34.82. The tax is 9.25%. How much taxes do you pay?

Commission:

Answers

Commission would be : 38.04
34.82*9.25= 322.08/100 = 3.22
comission : 34.82 +3.22 = $38.04

Please help! I will mark brainliest if you help me understand the steps
(Look at my most recent questions on my profile for Part A & Part B!!)

Part C

6. Now that the curve pieces are determined, use those pieces as sections of a complete coaster. By hand or by using a drawing program, sketch a design of Ray and Kelsey's coaster that includes the shape of the g(x) and f(x) functions that you chose in the Parts A and B. You do not have to include the coordinate plane. You may arrange the functions in any order you choose, but label each section of the graph with the corresponding function for your instructor to view.


(This is the last part I need help with, please try to answer as quickly and as helpful as possible!)

Answers

Answer:

I don't see the graph sorry my guy .

Step-by-step explanation:

:C

No graph In this question?

A scale of a map indicates that “1 inch equals 55 miles”. How many miles does 8 inches represent?

Answers

440 because you multiply 8 x 55
440. you would just multiply 8 x 55

plz help me this hard

Answers

Answer:

18 minutes.

45*2/5=18

Answer:

Step-by-step explanation:

Help me please thank you

Answers

Step-by-step explanation:

7-5=2(potato minus carrot side height)

5 ( carrot side length)

2×5=10

Which of the following expressions have equivalent solutions?

I. −7.56÷2.4−0.65

II. (518−34)÷−134

III. −58(83+113)

Answers

1. -3.8
2. -242/67
3. -11368
Photomath is a good app to help give u answers for math. Hope this helps u

If you could explain to me how you get the answer, that will be great!

Answers

Answer: 48 cm^2

Step-by-step explanation:

find the surface area of the rectangles and squares

3(4)=12

3(3)=9

5(3)=15

find the surface area of the triangle

SA=bh÷2

3(4)=12

12÷2=6

both of the triangles have the same base and height so multiply it by 2

6(2)=12

add all of the surface areas

12+9+15+6+6=48

choose the best answer for the missing number

10
1
[tex]\frac{1}{100}[/tex]
[tex]\frac{1}{10\\}[/tex]

Answers

1/100 I think
If not I’m sorry

Can someone please help me find the area of the figure.

Answers

Answer:

17

Step-by-step explanation:

I did mental math

Answer:

rectangle=3*8 which is 24, and triangle is 4*5/2 do 24+10=34

Step-by-step explanation:

Write out the algebraic expression given in each written expression.
16 subtracted from the sum of 48 and bequals 129
A ( 16 - b) + 48 = 129
B (48 + b ) - 16 = 129
C.16 - (48 + b ) = 129
D 48 +(b - 16 ) = 129

Answers


B (48 + b ) -16 = 129
the answer is B (49 + b) - 16 = 129

PLEASE HELP 20 A B AND C

Answers

For A it’s 2.1 Million
answer : | a: 2.1 million | b: 2.1 x 10^2 | b: 1 x 10^4 | and I don’t know C sorry |
hope this helps you out .

PLEASE HELP!!!!!! BRAINLIEST INCLUDED!!!!!!
Find the area of a right triangle with a width of 4cm and a length of 10cm

Answers

Answer:

20 cm

Step-by-step explanation:

triangle area formula:

a = w times h / 2

a = area

w = width

h = height

Let's fill in the equation!

a = 4x10/2

a = 40/2

a = 20 cm

Answer:

A=ab/2

Hope it helps

A rectangle plot of land is 0.4 kilometres long and 0.07 kilometres wide. What is its area in square kilometres? show your reasoning.

Convert the decimals to fractions, then convert your answer back to decimals

Answers

Answer:

I think the answer is 0.28 or 7/25

Step-by-step explanation:

Answer:

0.028 square kilometres

Step-by-step explanation:

The area of a rectangle is:

length x width

The given length is 0.4 kilometres and the given width is 0.07 kilometres.

0.4 x 0.07 = 0.028

So the area of the rectangular plot land is 0.028 square kilometres

Hope this helps!

Please Help I will reward brainliest.

Answers

Answer:

8.4cm or 84mm

Step-by-step explanation:

It's not quite to the halfway point between 8 and 9 centimeters.

Answer:

12 cm

Step-by-step explanation:

Help a guy/girl/non-binary out? Please?
Suppose 288 electricians took a certification test that is worth 140 points. The five-number summary for the scores is shown here.
min. value = 68
Q1 = 110
median = 125
Q3 = 130
max. value = 138

About how many electricians had a score of 110 or less? A: 72 B: 130 C: 144 D: 216

Answers

Answer:

72

Step-by-step explanation:

For Q 1 : 25 % of the scores are below this value. The area under the bell-shaped curve of the normal distribution is 0.25. And since we have 288 electricians that took a certification test:

0.25 * 288 = 72.

Nikola buys a bouquet of 888 sunflowers for $18

Answers

Answer:

2.25

Step-by-step explanation:

18/8 = 2.25

Answer

2.25/flower

Step-by-step explanation:

18 divided by 8 = 2.25

Dara spends $16 on tubes of paint and disposable brushes for an art project. Each tube of paint costs $3, and each disposable brush costs $.50. Kara purchases twice as many brushes as tubes of paint. Find the number of brushes and the number of tubes of paint that she purchases.
Use the equations below to find your answers. Show your work.
x = tubes of paint
y= disposable brushes
x + .5y = 16
y = 2x

Answers

I could figure out but I am not going to sorry:(

Answer: There are 4 tubes of paint she purchased.

Step-by-step explanation:

Since we have given that

Amount spend on tubes of paint and brushes for an art project = $16

Cost of each tube of paint = $3

Cost of each brush = $0.50

Let the price of tube of paint be 'x'.

Let the price of brush be '2x'.

So, According to question, it becomes,

Please help me on this problem

Answers

Answer:

I think the answer would be -21%!

Step-by-step explanation:

-4/5 = -0.8 would be behind -.05

- 0.7 would be behind -.05

-21% = -0.21 correct answer

- square root of 1 = -1 too far from 0

Good Luck. Hope this helped.

To represent the number of squares after steps, Diego and Jada wrote different equations. Diego wrote the equation f(n)= (n+1) 2 . Jada wrote the equation f(n) = n 2+ 2n + 1. Are either Diego or Jada correct? Explain your reasoning.

Answers

I hope this is right

Answer:

nether of them are corrcet

Step-by-step explanation:

the steps are added by length and hight  

You just purchased new shoes for $150.99, a shirt for $32.99, and a new soccer ball for $10.99 at Nike. If the sales tax is 8%, how much will your total bill cost?

(help me please and thank you this is due today and this is the last question)

Answers

Answer:20$ and 50% off

Step-by-step also i made 100% first try

$20 & 50% off pretty sure that’s the answer

Please help 14 MATH PROBLEM

Answers

Answer:

80

Step-by-step explanation:

i think

3^6 i think sorry if it’s wrong

Evaluate each expression for the value given z/4;z=824

Answers

Answer:

their is no answer

Step-by-step explanation:

A three-dimensional figure has a volume of 314 cubic centimeters rounded to the nearest cubic centimeter. Select whether each shape below, with dimensions given in centimeters (cm), matches this three-dimensional figure.
A sphere with a radius of 4.217 cm

A sphere with a diameter of 4.217 cm

A cone with a radius of 10 cm and a height of 3 cm

A cylinder with a radius of 1 cm and a height of 10 cm

A cylinder with a radius of 4.47 cm and a height of 5 cm

Answers

Please do not listen to these bots.

Answer:

A cylinder with a radius of 1 cm and a height of 10 cm

Step-by-step explanation:

sorry no explanation, its correct!

Nick went canoeing on the river. He traveled 1 mile in 17 minutes. At this rate, how far will he travel in an hour and 25 minutes?

Answers

Answer:

5 miles

Step-by-step explanation:

I hope this helps :)

The answer should be 5 miles
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