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.
Compute the mean BMI
Compute the standard deviation of BMI
Compute the median BMI
Compute Q1 and Q3
Are there outliers in the distribution of BMI (justify your answer)?
Which measure best describe variability?
The following table shows the numbers of patients classified as underweight, normal weight,
overweight and obese according to their diabetes status.
If a patient is selected at random,
What is the probability that they are overweight?
What is the probability that they are obese and diabetic?
What proportion of the diabetics are obese?