why is it important to have a random sample for your data in statistics?

Answers

Answer 1

Answer:The simplest random sample allows all the units in the population to have an equal chance of being selected. ... Perhaps the most important benefit to selecting random samples is that it enables the researcher to rely upon assumptions of statistical theory to draw conclusions from what is observed.

Step-by-step explanation:


Related Questions

Khloe rolls a standard six-sided die, numbered from 1 to 6. Which word or phrase
describes the probability that she will roll an even number?
an equal chance or 50-50
O certain
Submit Answer
unlikely
O impossible

Answers

Answer:

It would be an equal chance

Step-by-step explanation:

PLEASEEEEE HELP ME......

Answers

Answer:

B makes the most sense.

Step-by-step explanation:

The others make little to no sense.

Answer:

B is the correct answer. it makes sense

In the library where you work, it usually takes you 2 hours to shelve 5 carts of books. At this rate, about how many minutes should it take you to shelve 1 cart of
books?

Answers

Answer: 24 min

Step-by-step explanation:

2 hrs / 5 carts = 120 min / 5 carts

120 / 5 = 24 min / 1 cart

can anyone help me with this​

Answers

Answer:

1. 7

2. 3

3. 105

49/7 = 7 which means 7 shot equals 1 minute

if you borrow $840.00 and you pay back 1/5 how much do you still owe?

Answers

Hello, I Am BrotherEye

Answer: 672 Dollars

Step-by-step explanation:

It Is Simple 1/5 Of 840 Is = 168

168 - 840=672

Thus The Money Owed is

672 Dollars

Best Of Luck

~

BrotherEye

Pls help asap thx its about Operations with Exponents
7.
8.
9.
10.​

Answers

Answer:

7. 2s^7

8. 2s^4/5s^2

9. 108s^9

10. h^7

Step-by-step explanation:

7) (2s^3)^4

= 2s^(3+4)

= 2s^7.

8) (2s^2/5s)^2

= (2s^4/5s^2)

= 2s^4/5s^2.

9) 3s^5 × 4s^-2 × 9s^6

= 12s^{5+(-2)} × 9s^6

= 12s^3 × 9s^6

= 108s^9.

10) h^5/h^-2

= h^{5-(-2)}

= h^7.

if it helps don't forget to like and mark me

for brainiest:):):):):):):)

Answers

Answer:

1: 55

2: 128

3: 175

Step-by-step explanation:

I believe that this is correct.

Kathi had a rope of 63.45 m. She cut the rope into two pieces. If the length of one piece was 23.59 m, what was the length of the other piece?

Answers

Answer:length of the other piece=39.86m

Step-by-step explanation:

Total length of rope =63.45 m

length of one piece = 23.59 m

Since the rope was cut into two pieces, we subtract the length of  known first piece from the total length

length of the other piece  = 63.45 m-23.59 m=39.86m

Henry has a box of toys that weighs 7 pounds. He has another box of toys that weighs 84 ounces. How many ounces do both boxes weigh altogether?

Answers

Answer:

196 ounces

Step-by-step explanation:

1 pound = 16 ounces

16 x 7 = 112

112 + 84 = 196 ounces

Plsss help me on this

Answers

Answer:

Pretty sure it is Product of Powers Property

Step-by-step explanation:

A cylindrical gasoline storage tank has a diameter of 3.8 ft and a height of 10.9 ft.
What is the total surface area of the tank.

HELP PLZ !!! Extra points will be given !!!

Answers

41.42 u willllll be. Right

what is the answer to the equation “what is 3 time 5”

Answers

Answer:

15

Step-by-step explanation:

When you multiply 3 to 5 you get 15 it is basic math. Or you can count out 5 plus 5 plus 5 if you need too.

Help plz due now will mark brainliest if correct

Answers

Answer:

2^3

Step-by-step explanation:

you subtract the exponents if they have the same coefficient when dividing them.

9-6=3

Find the nth term of this quadratic sequence 3,8,15,24,35...

Answers

Answer:

n^2 + 2n.

Step-by-step explanation:

n       =       1     2     3     4     5

term t =     3    8     15   24   35

Diffs  =          5    7      9     11

                        2     2     2             - so the nth term contains n^2.

n^2   =       1     4      9    16    25

t - n^2 =    2    4      6     8     10

This is an arithmetic sequence with nth term = 2 + (n-1)2 = 2n

So the nth term of the quadratic sequence = n^2 + 2n.

At a concert 3 out of 10 people who entered the Alamodome Nike shoes based on this information if there are 1200 people add the music concert how many people could be expected to be wearing Nike shoes?

Answers

Complete Question

At a concert 3 out of 10 people who entered the Alamodome wore Nike shoes based on this information if there are 1200 people at the music concert how many people could be expected to be wearing Nike shoes?

Answer:

360 people

Step-by-step explanation:

The fraction of people wearing Nike shoes = 3/10

The total number of the people at the concert = 1200 people

Therefore, the number of people cthat ould be expected to be wearing Nike shoes is calculated as:

3/10 × 1200 people

= 360 people

The answer is 360 people

Some to do. So do it.​

Answers

Answer:

1. A=42

L=14

42=W(14)

divide both sides by 14

3=W

2. A=96

L=12

96=W(12)

divide both sides by 12

8=W

3. A=90

L=18

90=W(18)

divide both sides by 18

5=W

4. A=1.50

L=15

1.50=W(15)

divide both sides by 15

0.1=W

Step-by-step explanation:

Pls can someone help me‼️‼️‼️‼️
and I don’t want files.

Answers

Answer:

135

Step-by-step explanation:

a line always has a degree of 180 so u just subtract 45 from 180 and get 135

m ∠LNM = 135°

Step-by-step explanation:

45° + 3x = 180°

3x = 180° - 45°

3x = 135°

1. ris 4 more than the product of 7 and 8

Answers

Answer:

i dont know if this is the answer u want

4+(7*8)=x

x= 60

Step-by-step explanation:

PLEASE HELP FAST!!
Write the equation of a line through the points (-1, 3) and (2, -5). (Write in Slope-Intercept form) (Hint: calculate the slope first.)

Answers

Answer:

The slope is -8/3

Step-by-step explanation:

Answer:

This answer is A

Step-by-step explanation:

i got you bro, im quick

Solve the equation for the indicated variable

Answers

Answer:

-1

Step-by-step explanation:

5(3x+7)=20-2(x+1)

15x+35=20-2x-2

17x=-17

x=-1

check answer:

5(3(-1)+7)=20-2(-1+1)

5(4)=20-0

20=20

Solve the inequality. Graph the solution.

Answers

Answer:

Don't see it. Sorry.

Step-by-step explanation:

What is the y-intercept for 2x + 4y= -8

Answers

x intercept: (-4,0)
Y intercept: (0,-2)

help pls D; I’ll mark brainliest :D

Answers

Answer:

6, -6 is the answer

36 is in the second quadrant that’s why.

Step-by-step explanation:

Given DE || BC, find the length of BD.

Answers

Answer:

BD = 12.5

Step-by-step explanation:

Full answer in the attachment!!


Can anyone help with these ?

Answers

ANSWER:
1. b
2. d
3. d
4. b
5. (4,2); (5,-2); (8,4)

Identify the volume of the figure in cubic units.

Answers

Answer:

8 cubic units

Step-by-step explanation:

Count it. It's all visible for this question.

The path of a rope bridge can be modeled by a quadratic equation h(l), where h is the height at a point on the bridge relative to the two ends of the bridge and l is the distance from one end of the bridge. One such bridge connects two ends that are 24 meters apart. The lowest point of the bridge is 3 meters lower than the two ends of the bridge Assuming the two ends of the bridge are at an equal height of h = 0 meters, which of the following graphs could be the graph of h (l)?​

Answers

The answer to that question is y:r/77

Q1 (pic 1)
Triangle ABC is similar to triangle WYZ.

Select all angles whose cosine equals 35.

Question 1 options:

Angle W


Angle Y


Angle C


Angle B


Angle Z


Angle A

Q2 (pic 2)
Triangle ABC is similar to triangle WYZ.

Determine whether the following statement is true or false.

sin(B)>sin(Y)
Question 2 options:
True
False

Answers

Answer:

Question 2 = True

I don't know the first question, the test wouldn't tell me:/

Angle C, Angle Z, Angle A, and Angle W are all angles whose cosine equals 35 and the statement that Sin B is greater than Sin Y is false.

What is a similar triangle?

The two triangles are said to be similar that have the same proportion of sides and angles.

Corresponding sides are in the same ratio.

a/p = b/q = c/r

In triangle ABC

AB = 5, AC = 3, BC = 4

Cos A = base/ hypotenuse

          = 3/5

Cos B = base/ hypotenuse

          = 4/5

Cos C = base/ hypotenuse

          = 3/5

In triangle WYZ

Cos W = base/ hypotenuse

           =  3/5

Cos Z = base/ hypotenuse

          = 4/5

Hence, Angle C, Angle Z, Angle A, and Angle W are all angles whose cosine equals 35.

In triangle WYZ

WY = 13

In triangle ABC

CB = 24, AC = 10

Sin B = Perpendicular/ hypotenuse

         = 10/26

Sin Y = Perpendicular/ hypotenuse

        = 5/13

Since both angles are equal also they are similar to each other.

Therefore, the statement that Sin B is greater than Sin Y is false.

Learn more about similar triangles;

https://brainly.com/question/25813512

List in order from least to greatest: 0, |-4|, |12|, -7, 2

Answers

The answer is A bro, easy

Answer:

-7, 0, 2, |-4|, |12|

Step-by-step explanation:

absolute value (| |) means that the sign of the number is always positive

Please help me I’m struggling

Answers

Answer:

i think it's a

hope this helps :)

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