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Answers for “为什么样本方差使用除数 n-1 而不是 n?”

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To compute the sample variance using the divisor n-1, you calculate the sum of the squared deviations of each observation from the sample mean. Then, you divide this squared-deviation total by n-1, where n is the sample size.

Conditions: You have a sample of observations.; You are calculating the variance with divisor n-1.