20-11-2022
Mathematics

Answered

At six months of age, the average length (height) of a baby in the United States is 26 inches. The heights of six-month-old babies is normally distributed, with a standard deviation of 2.5 inches.
Maria is worried because her six-month-old baby is 24.5 inches, and she heard that it should be 26 inches. With reference to the properties of the normal distribution, explain to her why she probably doesn’t have to worry.

You work at a clinic that gives out free onesies to mothers who bring their babies in for a six-month wellness check. You can special order onesies, but the director tells you not to pre-order onesies for “unusually” tall babies. Based on your knowledge of the normal distribution, what is the tallest size you will pre-order?

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