The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of risk factors for obesity. Body mass index is measured as the ratio of weight in kilograms to height in meters squared.
25 27 31 33 26 28 38 41 24 32 35 40
a) Compute the mean BMI
b) Compute the standard deviation of BMI
c) Compute the median BMI
c) Compute Q1 and Q3
e) Are there outliers in the distribution of BMI (justify your answer)?