z is a random variable follow the standard normal distribution . i want calculate the probability p(z<-0.5271) and p(z>0.02) ?

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mohammed elmenshawy 2017-1-28

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评论： Star Strider 2017-1-28

采纳的回答： Star Strider

z is a random variable follow the standard normal distribution . i want calculate the probability p(z<-0.5271) and p(z>0.02) ?

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Star Strider 2017-1-28

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Here you go:

P = @(z) erfc(-z/sqrt(2))/2;                  % Equivalent to ‘normcdf’
P1 = P(-0.5271)
P2 = 1 - P(0.02)
P1 =
         0.299062073372979
P2 =
         0.492021686283098

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mohammed elmenshawy 2017-1-28

thank u very very much

Star Strider 2017-1-28

My pleasure.

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