A Set of 10 Scores Has SS = 90

question 74

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; σ² = 9
• B)​s² = 9; σ² = 10
• C)​s² = 10; σ² = 9
• D)​s² = 10; σ² = 10

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