The weights for 12-month-old baby boys are normally distributed with a mean of 22.5
Chapter 12, Problem 29(choose chapter or problem)
The weights for 12-month-old baby boys are normally distributed with a mean of 22.5 pounds and a standard deviation of 2.2 pounds. In Exercises 27–30, use Table 12.17 on page 816 to find the percentage of 12-month-old baby boys who weighbetween 19.2 and 21.4 pounds.
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