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Mathematics 16 Online
OpenStudy (anonymous):

Statistics! Given the mean of a data set and a number at the 85th percentile, what is the process by which one can find the standard deviation? Correct me if I'm wrong, but I have this so far: mean + (Z-score at 85th)(standard dev) = 85th percentile number So: Mean + (1.03)(SD) = 85th perc num?

OpenStudy (tkhunny):

I think you have it! Solve for SD!

OpenStudy (anonymous):

Awesome thanks!

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