Astudy by the national center for health statistics found that the bmi of american young women (ages 20-29) has a mean of 26.8 and a standard deviation of 7.4. circle the best answer.
a. using the 68-96-99.7% rule, approximately 84% of this population would have a bmi that is more than 19.4
b. the national center for health defines a person with a bmi that is in the lower 13% of the population to be underweight. according to this definition, young female with a bmi of 19.6 is underweight.
c. the national center for health defines a person with a bmi associated with a z-score of 0.43 or more to be overweight. according to this definition approximately a person with a bmi of 31.0 is overweight
d. both (a) and (b) are true.
e. both (a) and (c) are true.