Find probability of selecting a sample of scores

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A population of scores forms a normal distribution with a mean of µ=40 and a standard deviation of σ=12. What is the probability of randomly selecting a score less than X=34? What is the probability of selecting a sample of n=9 scores with a mean less than M=34? What is the probability of selecting a sample of n=36 scores with a mean less than M=34?

Reference no: EM13143414

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