A population of values has a normal distribution with �=121.9 and �=67.7. If a random sample of size �=20 is selected, Find the probability that a single randomly selected value is greater than 76.5. Round your answer to four decimals. P(X > 76.5) =  Find the probability that a sample of size �=20 is randomly selected with a mean greater than 76.5. Round your answer to four decimals. P(M > 76.5) =

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