**Standard Deviation Formulas - mathsisfun.com**
https://www.mathsisfun.com/data/standard-deviation-formulas.html

The Standard Deviation is a measure of how spread out numbers are. You might like to read this simpler page on Standard Deviationfirst. But here we explain the formulas. The symbol for Standard Deviation is σ(the Greek letter sigma). Say what?Please explain! OK. Let us explain it step by step. Say we have a bunch of numbers like 9, 2, 5, 4, 12, 7, 8, 11. To calculate the stan…

The** Standard Deviation** is a measure of how spread out numbers are. You might like to read this simpler page on Standard Deviationfirst. But here we explain the formulas. The** symbol** for** Standard Deviation** is σ(the Greek letter sigma). Say what?Please explain! OK. Let us explain it step by step. Say we have a bunch of numbers like 9,** 2,** 5, 4, 12, 7, 8, 11. To calculate the** stan**…

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