The following data set (WIRE) contains breaking strength measurements recorded in pounds per inch ... You can use the STDDEVIATIONS option and the SMETHOD= option to specify how the estimate of the ...

The standard deviation is the square root of the variance. By taking the square root, the units involved in the data drop out, effectively standardizing the spread between figures in a data set ...

Fact checked by Ryan Eichler Reviewed by Margaret James Risk measurement is a very big component of the finance industry. While it plays a role in economics and accounting, the impact of accurate or ...

But knowing the middle of the set doesn't tell us everything. We also want to know more about the overall shape of our data. Standard deviation is a measure of how spread out a data set is.