What is the mean of the data set? 85, 97, 84, 88, 95, 100, 81

Add the seven values: 85 + 97 + 84 + 88 + 95 + 100 + 81 = 630. Divide the sum by the 7 data values: 630 ÷ 7 = 90, so the mean is 90.

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