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

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

Answer 1

[Star Strider]

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

[mohammed elmenshawy]

thank u very very much

[Star Strider]

My pleasure.