Question

Amongst pregnant women, BMI at 16 weeks gestation has a mean of 28.5 with a standard deviation of 3.6. To solve the problems below, assume that BMI follows a normal distribution.

1. Indicate the proportion of pregnant women that have a BMI less than 24.9. (1pt)

a)         P (X < 24.9) = 0.16

b)         P (X < 24.9) = 0.34

c)         P (X < 24.9) = 0.68

d)         P (X < 24.9) = 0.84

e)         Some other answer; indicate:

2. Indicate the proportion of pregnant women that have a BMI greater than 35.7. (1pt)

a)         P (X > 35.7) = 0.95

b)         P (X > 35.7) = 0.997

c)         P (X > 35.7) = 0.025

d)         P (X > 35.7) = 0.975

e)         Some other answer; indicate:

Answer 1