A librarian wants to check a sample of books from the library to get an idea of how many need replacing.
Why might simple random sampling be a good way to do this?
He will not need a list of all the books
He will take longer if he checks all the books instead of checking a few
He will have a more representative sample if he chooses randomly
He will be able to choose whichever books he likes because it is random

Answers

Answer 1

The reason why simple random sampling will be a good way to do the selection of bad books is; Option C: He will have a more representative sample if he chooses randomly

What is the importance of simple random sampling?

A simple random sample is defined as a randomly selected subset of a particular population. In this method of sampling, it will be noticed that each member of the population has an exactly equal chance of being selected.

The importance of simple random sampling is that it removes every form of bias as every member has an equal chance of being selected. Thus, it will give a good representation of what we want to research.

Now, in this case, since the librarian wants to check a sample of books from the library to get an idea of how many need replacing, it means that a random sampling method is good because;

He will have a more representative sample if he selects randomly as the definition earlier stated makes clear.

Read more about simple random sampling at; https://brainly.com/question/14470673

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Related Questions

A bag of potatoes weighs 15 pounds. How many kilograms is this?

Answers

Answer:

6.8 kg

Step-by-step explanation:

1 pound = 0.4536 kg

15(0.4536) = 6.804

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The correct one is 6 is 3 times as many as two.

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9514 1404 393

Answer:

x = 4

Step-by-step explanation:

The figure is a rhombus when the sides are the same length.

21 -x = 2x +9

12 = 3x . . . . . . . . add x-9 to both sides

4 = x . . . . . . . . . . divide by 3

HELP DUE SUPER SOON!!
A university has 32,040 students. In a random sample of 270 students, 18 speak three or more languages
Predict the number of students at the university who speak three or more languages.
The expected number of students at the university who speak three or more languages is

Answers

Answer:

2022 students

Step-by-step explanation:

Since 18 out of 270 students speak three or more languages, a prediction would be 30,330 x 18/270 = 2,022 students

i need help with this

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Answer:

b≈41.95

Step-by-step explanation:

A) 79.2
C) 11.9
B) 8.9
D) 11.6

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Answer:

789

Step-by-step explanation:

NEEDED ASAP PLEASE. 22-32 will give brqinliest no trolls

Answers

22: 4x+8
23: 3x+21
24: 10x+35
27:39
28:48
29:36
30: 2(x+4)
32: 7(6x+7)

3392 divided by 56 x 986 -34 help

Answers

Answer:

59,689.43 (rounded)

Step-by-step explanation:

I cN explain how to get to the answer if you'd like

How many almonds in the cup? (1/4 cup) Help me

Answers

Answer:

The amount of almonds in the fourth cup are 40

Annie had 24 more paper clips than Paul.Paul had 20% fewer paper clips than Annie. How many paper clips do they have altogether help

Answers

Answer:

43.20

Step-by-step explanation:

100%=24

1%=24÷100=0.24

100+80=180

180%=0.24×180=43.20

3/4
of 7 please answer quick

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Answer:

5 and 1/4

Step-by-step explanation:

7*3/4= 3/4 of 7.

Answer:

Step-by-step explanation:

The ratio of boys to girls is 1:1.
If there are 250 boys, how many
girls are there?

Answers

The answer would be: 250 girls

Answer:

250 girls

Step-by-step explanation:

Boys = Girls

250 = Girls

The base figure in a mandala design is a nine-pointed star. Find the measure of each arc of the circle circumscribed about the star.

Answers

We need a picture for that lol for taht

Jen needs to save $180 for a new camping tent. She is able to save $9 each week. How many weeks will Jen need to save to reach her goal? Write an equation to solve the problem. Explain how you found your answer.
(will give brainiest if answered correctly, if you just comment something wrong and a waste of time that is a report)

Answers

It will take jen 20 weeks till she can get a new camping tent

If the second of three consecutive integers is subtracted from 135, the result is the sum of the first and third. What are the integers?

Answers

Answer:

44, 45, and 46

Step-by-step explanation:

135-(x+1)=x+(x+2)

135-(x+1)=2x+2

135=3x+3

132=3x

x=44

So the first number is 44

Then just add 1 and 2 to get 45 and 46 as the second and third number.

If −6n=−48
then n=
HELP PLEASE

Answers

Answer:

Step-by-step explanation:

Suppose that 93% of approximately 1000 total dogs sold by a shelter are up-to-date on their shots. Administration plans to take an SRS of 40 dogs sold by the shelter to see what proportion of the dogs sampled are up-to-date on their shots. What are the mean and standard deviation of the sampling distribution of the proportion of dogs who are up-to-date on their shots? Choose 1 answer:

Answers

Answer: μp^ = 0.93

σp^ = √0.93(0.07)/40

Step-by-step explanation:

8 students share 7 oranges. How many oranges does each student get?

Answers

Step-by-step explanation:

every student will get 7 slices ....I think si

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Answers

Answer:

Step-by-step explanation:

6x4=24+1=25 75/25=3 .

oh and btw go back to high school

12 pieces ! ( > < )

for future reference, this will be a lot easier to do than using points !! so simple :))

use your calculator to divide the large number by the small number !! that should give your answer

and remember if a fraction is out of four think of it like quarters or 25 cents :3

so 75 divided by 6.25 is 12 !!

good job !!! ♡♡

Will give brainliest!!

Answers

Answer:

Step-by-step explanation:

Answer:

B and C

Step-by-step explanation:

Find the compound interest on an investment of $8,000 at 6% compounded semiannually for 3 months.
a) $9,552.80
b) $1,552.80
c) $1,500.00
d) $9,500.00
e) None of these

Answers

It’s a I think. I hope you get it right /)

Can someone help me solve?

A. 72
B. 4.5
C. 144
D.9

Answers

Answer:

C: 144

Step-by-step explanation:

3 in. × 3 in. = 9

9 in. × 16 in. = 144 in.

Asap need help fast pls!!!!!!

Answers

Answer:

i think its 20 too, tho good luck

Step-by-step explanation:

A box of 15 cookies cost nine dollars what is the cost for one cookie

Answers

Answer:

9:15 = 0.6

answer : 0,6

.............

help i will give brainliest

Answers

0.329, 127.5, and -89 is rational. Square root of 101 is irrational.

can someone help pls?

Answers

try googling it thats what I would do. I think it would be 1/6 tho

Which is the cost of the minimum spanning tree of the weighted graph using Kruskal's Algorithm?
28
30
31
40

Answers

9514 1404 393

Answer:

(a) 28

Step-by-step explanation:

Kruskal's algorithm has you identify the shortest edge at each stage, including in the tree any identified edge that does not form a cycle. Here, we can start with AB, then add DF, EH, HG, BG, AC, CD and that covers the entire graph.

Starting at E, the node list is EHGBACDF. The cost is ...

3 +4 +5 +1 +6 +7 +2 = 28

In the attached, the minimum-cost spanning tree is highlighted in red.

A pizza restaurant advertises the following for one pizza two toppings $20 for toppings $26 using this information determine the cost of a pizza with one topping topping.

EXPLAIN HOW YOU DETERMINED THUS COST!!! please
ASAP

Answers

By adding 4 toppings, the price jumped up 6$ from the 2 toppings. So we can assume that ever 2 toppings it costs 6$. Divide 6 by 2 and you get 3$ per topping.

ian charges $15 per hour to landscape. if ian hired for more then six hours, he will reduce the cost by $1.50 per hour. write an expression to show the total cost of hiring ian for h hours if he landscapes for more then six hours?

Answers

Answer:

Step-by-step explanation:

87 because 15 times 6 equals 90 but take away the 1.50 from eah hou and you get 87

Please guys helppp ;( F(x)=mx+ b, f(-2)=3 and f(4)=1 , what is the value of m and b

Answers

Answer:

I think the answer is m= -1/3 b=7/3

Explanation:

so first, you need to make equations using the info that the question gave.

f(-2)= m(-2)+b f(4)= m(4)+b

= -2m+b =4m+b

f(-2)= 3 f(4)= 1

-2m+b= 3 4m+b=1 -(2)

b= 3+2m -(1)

substitute (1) into (2) : 4m+(3+2m)=1

4m+2m+3=1

6m=1-3

6m= -2

m= -2/6

m= -1/3

Substitute m= -1/3 into (2)

4(-1/3) + b=1

-4/3 +b =1

b= 1+ 4/3

b= 7/3

Therefore, m= -1/3 b=7/3

and that's how you do it

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