Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the mean is 78. Her steps for finding the variance are shown below.

Question

Mathematics

Marina

4 August, 14:48

Emi computes the mean and variance for the population data set 87, 46, 90, 78, and 89. She finds the mean is 78. Her steps for finding the variance are shown below.

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Answers (2)

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Cinnamon · Answer 1

Well for emi to find that she did the following: Emi evaluated (46 - 78) 2 as - (32) 2. And that is how she computes the data given. I hope this is really useful for you

Clarence Holmes · Answer 2

Clarence Holmes 4 August, 17:12

0

basically the answer is c