For the values 2, 4, 6 thee variance is 1.66 O 2.77 O 2.11 O 1.33 O 2.66 O O

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Q: What is the variance using this equation, with the following data: 76, 88, 67, 80, 44, 65, 50, 98,…

A: Sol: Given data, 76, 88, 67, 80, 44, 65, 50, 98, 55, 45, 23, 44, 65, 78, 66, 56, 89, 76, 87, 29

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Q: a population of normally distributed scores,   = 230 and   = 10. Approximately what percentage of…

A: given data  normal distribution μ = 230σ = 10n = 25P(228<x¯<232) = ?

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