Question

The “sample variance” of the scores 1, 4, and 7 is ______ So then the sample's...

The “sample variance” of the scores 1, 4, and 7 is ______

So then the sample's standard deviation is ______

Math   Statistics-And-Probability   
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Answer #1

Solution:-

The “sample variance” of the scores 1, 4, and 7 is 9

So then the sample's standard deviation is 3

=> sd = sqrt(9) = 3

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