Ask question

Ask question

All categories

3 years ago

7

A school librarian is purchasing books for the next school year. She surveyed 25 students and 6 said that they prefer science fi

ction books. If there are 125 total students, how many science fiction books should be purchased.

1 answer:

Svetlanka [38]3 years ago

5 0

Answer:

30 science fiction books

Step-by-step explanation:

You might be interested in

At winds speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. Wind speeds below 100

alisha [4.7K]

Answer:

Lower limit = 1007.95 cm/s

Upper limit = 1142.05 cm/s

Step-by-step explanation:

We have to calculate a 95% CI with population's standard deviation known.

The sample is size n=60, with mean M=1075.

The confidence interval can be expressed as:

$M-z*\sigma/\sqrt{n} \leq\mu\leq M+z*\sigma/\sqrt{n}$

For a 95% CI, the value of z=1.96.

$1075-1.96*265/\sqrt{60} \leq\mu\leq 1075+1.96*265/\sqrt{60} \\\\1075-67.05 \leq\mu\leq 1075+67.05\\\\ 1007.95 \leq\mu\leq 1142.05$

8 0

3 years ago

Pls help me answer this question

docker41 [41]

x=
d+a
——
b+c
Answer above

7 0

2 years ago

UNLI Quiz Active 1 2 3 5 11 TIME What should be done to solve the equation? X+ 14 = 21 Add 14 to both sides of the equation. Sub

sladkih [1.3K]

I need help to and no one gives me help sjsjsj

7 0

3 years ago

Read 2 more answers

7s0t-5/2-1m2 simplify

Mars2501 [29]

<span>The answer should be 14t - 2m2 - 5/2 , if I am correct</span>

6 0

3 years ago

Use the given x and y values to write a direct variation<br> equation.<br> x = 5, y = 25

Anuta_ua [19.1K]

Answer:

k= 1/5

Step-by-step explanation:

x is proportional to y

x = ky (k is const.)

k = x/y

k= 5/25

k = 1/5

7 0

3 years ago

Read 2 more answers