Question

1) Assume that women's heights are normally distributed with a mean given by μ=64.5 in, and a
standard deviation given by σ=3.1 in.
a) If 1 woman is randomly selected, find the probability that her height is less than 65 in.
b) If 39 women are randomly selected, find the probability that they have a mean height less than 65 in.

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