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1 year ago

About how many students do not prefer non- fiction?

Mathematics

1 answer:

slamgirl [31]1 year ago

8 0

Answer:

B. 75%

Step-by-step explanation:

If about a quarter ( 25% ) do like non-fiction, then we know that the rest do not prefer it ( 75% )

75 + 25 = 100

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A manufacturer claims that its new hand sanitizer reduces the number of days an average person is sick in a year. To test this c

marysya [2.9K]

Answer:

in my opinion is the last:

this studies uses a control group

Step-by-step explanation:

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2 years ago

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3(2x + 11) and (3x + 15)(2)

algol [13]

Answer:

3(2x+11)= 6x+33 and (3x+15)(2) = 6x+30

Step-by-step explanation:

Use distributive property to multiply the outside factor to each factor inside the parenthesis.

3(2x+11)

(3*2x)+(3*11)

6x+33

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3 years ago

A population of size 320 has a proportion equal to .60 for the characteristic of interest. What are the mean and the standard de

tiny-mole [99]

Answer:

The answer is c.) 0.6 and 0.14

Step-by-step explanation:

Given population has a size of 320.

The proportion of population = 0.6

The mean of population, p = 0.6

The mean of sample, $\hat{p}$ = 0.6

Therefore $\hat{q}$ = 1 - $\hat{p}$ = 1 - 0.6 = 0.4

The sample size = 12

Therefore the standard deviation of the sample,

$s = \sqrt{\frac{\hat{p}(1 - \hat{p})}{n} } = \sqrt{\frac{0.6 \times 0.4}{12} } = 0.1414$

The mean and the standard deviation for a sample size of 12 are 0.6 and 0.14 respectively.

The answer is c.) 0.6 and 0.14

6 0

2 years ago

What is the volume of this cylinder?

tatiyna

Answer:

The volume of the cylinder is 792

Step-by-step explanation:

3.14*6^2*7= 791.68 then when you round it up to the nearest whole number it's 792

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2 years ago

What is 12 times a number g ?

sergeinik [125]

Answer:

12g

Step-by-step explanation:

I don't have a lot of contexts here but based on what saw the answer should be 12g

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2 years ago

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