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Given a normal distribution with 100 and

Given a normal distribution with μ = 100 and σ = 10, what is the probability that

a. X > 75?

b. X < 70?

c. X < 80 or X > 110?

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

a. X > 75?

b. X < 70?

c. X < 80 or X > 110?

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

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