Question: Given a normal distribution with m = 100 and s = 10, what is the probability that a. X 7 80? b. X 6 95

Given a normal distribution with m = 100 and s = 10, what is the probability that

a. X 7 80?

b. X 6 95 ?

c. X 6 85 or X 7 105?

d. Between what two X values (symmetrically distributed around the mean) are 90 percent of the values?

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