# Math Help - Calculation of standard deviation of percentages of different base sizes

1. ## Calculation of standard deviation of percentages of different base sizes

Hi,

I'm looking to calculate the standard deviation of %'s. If they were the same base, i would simply calculate the standard deviation as normal. However, as the base sizes are different for the %, how do i go about calculating the standard deviation?

Thanks,

2. ## Re: Calculation of standard deviation of percentages of different base sizes

Hello,

Give further precisions, I can't make a clear idea out of what you're saying...