Answer to Question #317563 in Statistics and Probability for Sks

Statistics and Probability

Question #317563

If X follows a normal distribution with u = 30 and o=4, what is P(X<27)?

Expert's answer

"P\\left( X<27 \\right) =P\\left( \\frac{X-30}{4}<\\frac{27-30}{4} \\right) =P\\left( Z<-0.75 \\right) =\\varPhi \\left( -0.75 \\right) =0.2266"

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