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Mathematics
OpenStudy (anonymous):

What is the standard deviation of the following data set? 11, 13, 15, 16, 20, 21

OpenStudy (anonymous):

how do we calculate it?

OpenStudy (anonymous):

i dont know

OpenStudy (anonymous):

really?

OpenStudy (anonymous):

nevermind its A.

OpenStudy (anonymous):

A means 11

OpenStudy (anonymous):

square root 9.5

OpenStudy (anonymous):

ok

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