Emi computes the mean and variance for the population data set 87 46 90 78 and 89 She finds the mean is 78 He steps for finding

Question

Emi computes the mean and variance for the population data set 87 46 90 78 and 89 She finds the mean is 78 He steps for finding the variance are shown below 2 87 78 2 46 78 90 78 78 78 89 78 9 2 32 2 12 2 0 11 5 81 1 024 144 0 121 5 5 678 5 135 6 What is the first error she made in computing the variance Emi failed to find the difference of 89 78 correctly Emi by N instead of N

Kunduz · Accepted Answer

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