Question: : 6, 5, 10, 5, 6, 9, 9, 5, 9, 5, 8, 7, 8, 6, 9, 8, 9, 6, 10, 8 What is the mean

:6, 5, 10, 5, 6, 9, 9, 5, 9, 5, 8, 7, 8, 6, 9, 8, 9, 6, 10, 8

What is the mean number of hours of sleep for this sample?

What is the variance?

Standard deviation?

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