Explain normal distribution curve probabilities

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Reference no: EM13100033

Given a normal distribution with a mean of 100 and a standard deviation of 10, what is the probability that

a. X > 75

b. X < 70

c. X < 80 or X > 110

d. 80% of the values are between what two X values (symmetrically distributed around the mean)?

Reference no: EM13100033

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