1. The following frequency distribution shows the results of a sample of elementary school children. The...

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1. The following frequency distribution shows the results of a sample of elementary school children. The study was to determi

a. Find the mean internet usage time. Round answer to one decimal place. b. Find the sample standard deviation. Round answer

math Statistics-And-Probability

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Answer 1

Answer #1

From the given information,

By using calculator,

The required correct answers are,

a. Mean= 41.8

b. Sample standard deviation= 20.2

Thank you.

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Answer 2

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