Variance or Standard Deviation Between Expressions

[#1]

Hi

I have a graph with 4 expressions + 1 Text (Value on Data Points)

1) I would like to show as Value on Data Points the Standard Deviation between the four other expressions.

Is there any easy way to do this? Or I should write the whole formula of SD using the values of the other expressions?

Thank you!!

[#2 · Accepted solution]

Finally I solved it with the following functions:

RangeStdev(Expression1,Expression2,Expression3,Expression4)