All freshmen, sophomores, juniors, and seniors attended a
high school assembly. the total student attendance is
shown in the table.
twice during the assembly, a student is chosen at random
to assist with the presentation. after the first student has
finished assisting, the student returns to the group and can
be chosen a second time. what is the probability that the
first student chosen is a senior and the second student
chosen is a sophomore?
class
number of
people
31
freshmen
sophomores
juniors
seniors
10
17
22