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

hi

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

Best Answer

  • 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