Ask your own question, for FREE!
Mathematics 8 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!

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!