The Sample Variance $s ^ { 2 }$ Is an Unbiased Estimator of the Population Variance

question 52

Multiple Choice

The sample variance $s ^ { 2 }$ is an unbiased estimator of the population variance $\sigma ^ { 2 }$ when the denominator of $s ^ { 2 }$ is:

• A) n.
• B) n - 1.
• C) n.
• D) n + 1.

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