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Helper V
Helper V

Calculate Standard Deviation with a slicer for Sigma

I'm trying to build a Standard Deviation based on these rules:



I know I can't create a bell chart like that in PowerBI, but I'm trying to at least create the categories for the intervals/sigma values.


StandardDeviationInterval<68.2% && StandardDeviationInterval>=27.2%,"SD2",
StandardDeviationInterval<27.2% && StandardDeviationInterval>=4.2%,"SD3",
StandardDeviationInterval<4.2% && StandardDeviationInterval>=0.2%,"SD4","SD5+")


How do I calculate this deviation interval?

I know how to calculate the standard deviation and the distribution with STDEV.S and NORM.DIST respectevely but these do not give me those 5 ranges/intervals I need.

Super User
Super User



You might try creating a disconnected table with a row for each range (SD1, SD2, etc.). Then use this table in the visual, and use DAX to get the amount for each range. 


Here's a free histogram visual:




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