Birth weights at a local hospital have a normal

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Birth weights at a local hospital have a normal distribution with a mean of 110 oz and a standard deviation of 15 oz.

a. What is the probability that a baby born at this hospital will have a weight greater than 125?

b. What is the probability that a baby born at this hospital will have a weight between 110 and 125?

c. What is the probability that a baby born at this hospital will have a weight less than 105?

d. What weights would be cut off values defining the middle 10%?

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