Based on CDC 2007 - 2010 reports, the average BMI for adults in the United States is 28.6 with a standard deviation of 4.

Assume BMI is normally distributed and a BMI of >= 30 is considered obese.

Based on the CDC reports, what proportion of the United States adults are obese?

A) 64%

B) 36%

C) 25%

D) 5%

Based on the previous question, let a 25 <= BMI < 30 be considered overweight. What proportion of the United States adults is overweight?

A) 18%

B) 36%

C) 46%

D) 54%