Normal distribution: word problems

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Annual return of a stick is normally distributed with mean of 4% and standard deviation of 5%. Find the probability that the one-year return of this stock would be negative.
Mar 12th, 2015

x =0, z = (0-4%)/5% = -0.8 

P(x<0) = P(Z<-0.8) = 0.212

Mar 12th, 2015

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Mar 12th, 2015
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Mar 12th, 2015
Sep 21st, 2017
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