# Standard deviation of individual proportions

#### CStat

##### New Member
Hi !

I would like to calculate the standard deviation of a series of individual percentages. For each individual, the percentage corresponds to a traceability compliance defined by the quotient of the number of acts traced over the number of acts that must be traced.
I have the compliance for 8 individuals. I wanted to do a classic standard deviation but it seems to me that it is statistically wrong to do this....

Ind Trace To trace Compliance
1 8 10 0.8
2 0 6 0
3 1 13 0.0769
4 1 9 0.1111
5 9 14 0.6429
6 8 15 0.5333
7 8 21 0.3810
8 0 9 0

Can you help me ?

Thanks