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

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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

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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 1
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 1 (196.04 KiB) Viewed 27 times
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 2.26 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 19.57 pounds? b) What is the probability that a randomly chosen 12-month-old baby girl weighs more than 23.51 pounds? c) What proportion of 12-month-old baby girls weigh between 19.86 and 22.3 pounds?
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