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18-07-2017
Mathematics

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What is the standard deviation of the following data? If necessary, round your answer to two decimal places. 82, 44, 67, 52, 120

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23-07-2017

Number of values = 5 (There are 5 values given)

Mean = (82 + 44 + 67 + 52 + 120)/5 = 73

Variance = (1/5) [(82-73)^2 + (44-73)^2 + (67-73)^2 + (52-73)^2 + (120-73)^2] = 721.6

Standard deviation = sqrt (721.6) = 26.86

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