Answer with explanation:
The entry in the graph are :
humor- 13 out of 25
nonfiction- 8 out of 25
mystery- 15 out of 25
romance- 6 out of 25
adventure- 13 out of 25
i.e. the probability of choosing humor books= 13/25
and the probability of choosing non-fiction= 8/25
Now there are a total of 605 students enrolled at the school.
- Hence, the number of students preferring humor books is:

which is approximately equal to 315 students
- and the number of students preferring non-fiction is:

which is approximately equal to 194 students