Question

The following stem-and-leaf plot shows the cholesterol levels of a random number of students. These values range from 2.3 to 8.9. What percentage of the students have levels between 5.0 and 7.1, inclusive?

Answer 1

There are total 25 students  levels from 2.3 to 8.9

The students have levels between 5.0 and 7.1 = 7

so 7/25 = 0.28 = 28%

Answer 28%