A population of values has a normal distribution with 18 4

Last updated: 3/19/2023

A population of values has a normal distribution with 18 4 and a 41 4 a Find the probability that a single randomly selected value is less than 19 Round your answer to four decimal places P X 19 b Find the probability that a randomly selected sample of size n 197 has a mean less than 19 Round your answer to four decimal places P M 19