Question
Find the variance of the following data points:
6, 7, 5, 9, 12, 15Solution
6, 7, 5, 9, 12, 15 Mean = (5+6+7+9+12+15)/6 =54/6=9 6, 7, 5, 9, 12, 15 Deviation= 3, 2, 4, 0, 3, 6 Variance = (9+4+16+0+9+36)/6 =74/6 =37/3.
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