Compute the average and standard deviation

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Reference no: EM13264805

Find the average and the standard deviation for the following data. Please show the procedure "longhand" using only x1, x2, and x3. Then, use a calculator to calculate the average and standard deviation for x1 through x12. i know how to find the average but i dont understand how to findthe standard deviation.

x1=41.46

x2=41.89

x3=42.68

x4=41.95

x5=42.79

x6=41.19

x7=42.56

x8=41.14

x9=41.75

x10=42.45

x11=41.54

x12=42.72

Reference no: EM13264805

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