Answer to Question #118627 in Statistics and Probability for Michael

Question #118627

Find the percentile for x=8 if the mean is 7 and the standard deviation is 2

Expert's answer

"Z=\\frac {x-\\mu} {\\sigma}"

"=\\frac {8-7}{2}"

=0.5

"\\Phi(0.5)=0.6915" from the z tables

X=8 is at 69th percentile.

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