Mathematics

Mario Huff

9 May, 09:12

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