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15-04-2018
Mathematics

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Calculate the mean and variance of the sample data set provided below. show and explain your steps. round to the nearest tenth. 14, 16, 7, 9, 11, 13, 8, 10

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15-04-2018

Mean = (14 + 16 + 7 + 9 + 11 + 13 + 8 + 10) ÷ 8 = 11

Variance =
[ (14-11)²+(16-11)²+(7-11)²+(9-11)²+(11-11)²+(13-11)²+(8-11)²+(10-11)² ]/7 = 9.71

Answer: 9.71

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