A population of values has a normal distribution with 230 and σ = 52.5. μ = a. Find the probability that a single randomly selected value is less than 220.2. Round your answer to four decimal places. P(X < 220.2) = b. Find the probability that a randomly selected sample of size n = 73 has a mean less than 220.2. Round your answer to four decimal places. P(M < 220.2) =

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