Mathematics, 20.03.2020 03:42 frankierice020

A doctor is using a growth chart for baby girls that indicates a 12-month-old baby girl has a mean weight of 21.1 pounds with a standard deviation of about 2.21 pounds. Assume that the weights are approximately normally distributed.

a) What is the probability that a randomly chosen 12-month-old baby girl weighs less than 20.13 pounds?

b) What is the probability that a randomly chosen 12-month-old baby girl weighs more than 23.84 pounds?

c) What proportion of 12-month-old baby girls weigh between 19.6 and 22.15 pounds?

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