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A Set of 10 Scores Has SS = 90

Question 78

Multiple Choice

A set of 10 scores has SS = 90.If the scores are a sample,the sample variance is ____,and if the scores are a population,the population variance is ____.


A) s2 = 9; ?2 = 9
B) s2 = 9; ?2 = 10
C) s2 = 10; ?2 = 9
D) s2 = 10; ?2 = 10

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