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Nataly_w [17]
3 years ago
11

Can someone please help me with this ASAP

Mathematics
2 answers:
agasfer [191]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Kryger [21]3 years ago
4 0
D because three 20s of what’s half of 10 is 5 which makes 4. So three of what makes 20 evenly with the same number is 180.
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Of the 200 students surveyed at the local high school, 126 say that they prefer earlier start times for school. What is the mean
ra1l [238]

Answer:

The mean of sampling distribution of the proportion of the students who prefer later start times for school

                        μₓ = p = 0.63

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given sample size 'n' =200

given data Of the 200 students surveyed at the local high school, 126 say that they prefer earlier start times for school

sample proportion

                        p = \frac{x}{n} = \frac{126}{200} = 0.63

The mean of sampling distribution of the proportion of the students who prefer later start times for school

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Standard deviation of the proportion

                     S.D = \sqrt{\frac{p(1-p)}{n} } = \sqrt{\frac{0.63(1-0.63)}{200} } = 0.034

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3 years ago
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