The objective of the article, "Caffeinated and Caffeine-free Beverages and Risk of Type 2 Diabetes" (American Journal of Clinical Nutrition, Vol. 97, No. 1, pp. 155-166) by S. Bhupathiraju et al., was to examine the association between caffeinated beverages and type 2 diabetes risk. The mean and standard deviation of the body mass index (BMI) for a sample of 10,215 women who drink at least one caffeinated carbonated beverage a day are 25.7 and 5.3, respectively.

a. At least how many women in the sample have a BMI of between 15.1 and 36.3?

b. Fill in the blanks: At least 89% of the women in the sample have BMIs between ______and ______.