Standard Deviation Equation Question

[mosaic]

Hello,

Does anyone know any websites with a step by step example of calculating standard deviation? I can't find anything that explains all the math symbols in the equation.

Thanks.

 

[mmm4444bot]

There are over one hundred thousand references at Google when searching on "step-by-step standard deviation".

Click HERE to see one of them.

 

[whodunnit]

easy example