Your body mass index (BMI) is your weight in kilograms divided by the square of

Question

Your body mass index (BMI) is your weight in kilograms divided by the square of your height in meters. Many online BMI calculators allow you to enter weight in pounds and height in inches. High BMI is a common but controversial indicator of overweight or obesity. A study by the national Center for Health Statistics found that the BMI of American young men (ages 20-29) is approximately Normal with mean 26.8 and standard deviation 5.2. People with BMI over 30 are often classified as "obese"...What percent of men ages 20-29 are obese by this criterion? (Round Z-score to 2 decimals to use Table A. Give answer as a decimal, not a percent---ie 15.87% should be entered as 0.1587)

Explanation / Answer

mean = 26.8, s = 5.2
z = (x - mean)/s = (30-26.8)/5.2 = 0.615385 = 0.62
P(Z > 0.62) = 1 - P(Z > 0.62) = 0.2692

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