BMI. Body mass index (BMI) is equal to weight in kilograms divided by height in meters squared.

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BMI. Body mass index (BMI) is equal to “weight in kilograms”

divided by “height in meters squared.” A study by the National Center for Health Statistics suggested that women between the ages of 20 and 29 in the United States have a mean BMI of 26.8 with a standard deviation of 7.4. Let us assume that these BMIs are Normally distributed.

(a) A BMI of 30 or greater is classified as being overweight. What proportion of women in this age range are overweight according to this definition?

(b) A BMI less than 18.5 is considered to be underweight. What proportion of women are underweight?

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