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A normal distribution has a mean of m = 54 and a standard deviation of s = 6. a. What is the probability of randomly

A normal distribution has a mean of m = 54 and a

standard deviation of s = 6.

a. What is the probability of randomly selecting a

score less than X = 51?

b. What is the probability of selecting a sample of

n = 4 scores with a mean less than M = 51?

c. What is the probability of selecting a sample of

n =36 scores with a mean less than M = 51?

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