if a sample includes 27 people, the degrees of freedom used in the formula to estimate the population variance would be

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09-12-2022
Mathematics

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if a sample includes 27 people, the degrees of freedom used in the formula to estimate the population variance would be

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abhinavjh321 abhinavjh321 · Answer 1 · 2022-12-16T06:43:54-05:00

The degrees of freedom for the sample variance is equal to the number of data points in the sample minus 1, so for a sample of 27 people, the degrees of freedom would be 26.

The degrees of freedom for the sample variance is calculated by taking the number of data points in the sample and subtracting 1. In this case, the sample size is 27 people, so the number of degrees of freedom is 26. This is because we need to account for one degree of freedom in order to calculate the overall variance of the sample. The degrees of freedom is important in estimating the population variance because it helps to determine the size of the sample necessary to accurately estimate the population variance. By knowing the degrees of freedom, we can better understand the accuracy of our estimates and adjust our sample size accordingly.

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