Adam wants to know the mean number of minutes students spend commuting back
and forth to school each day. He selects a sample of 5 students using the random
digit table beginning on line 12 shown

Line 12: 29621 66583 62966 12468 20345 14015 04014 35713 03980 03024

a. What is the sample size?
b. Adam assigns each student a two-digit number beginning with 12 and ending
with 30.
Which students are chosen for the sample?