Question

The total number of hours each student spends volunteering in their community is shown in the stem-and-leaf plot.

Which statement is supported by the data in the stem-and-leaf plot?

A.
The most common number of hours volunteered is 25.

B.
The number of students who volunteered more than 30 hours is greater than the number of students who volunteered fewer than 30 hours.

C.
The number of students who volunteered between 9 and 20 hours is greater than the number of students who volunteered more than 40 hours.
D.
The most common number of hours volunteered is 42.

Answer 1

C

Explanation:

The most common number of hours volunteered is 34, so the answer can't be A or D. 7 students volunteered more than 30 hours, while 12 students did less than 30 hours, which means B is incorrect. There are 3 students that volunteered more than 40 hours and 6 that volunteered between 9 and 20 hours, which means C is correct.