Studies done by pharmaceutical companies want to determine the effectiveness of a new treatment program. Suppose that a new AIDS (acquired immunodeficiency syndrome)
antibody drug is currently under study. It is given to the patients once the AIDS symptoms
have revealed themselves. The interest of this study is to determine the average length of
time in months patients survive after starting the treatment. The following data (in months)
are collected

Select a sample of five patients out of 12 patients by referring the given random
numbers. Consider the first two digits of random number.