Answer to Question #350536 in Statistics and Probability for griiii

Question

in a reading ability test, with a sample of 100 cases, the mean score is 40 and

the standard deviation is 4.0. Assuming normality, What is the probability that a score will lie below score 46

Answer 1

$P(X<46)=P(Z<\frac{46-40}{4})=P(Z<1.5)=0.9332$