Ms. Miller gave her students a biology test last week.

Here are the test scores for each of the twelve students.

Complete the grouped frequency distribution for the data.

In the distribution, the frequency of a class is the number of test scores in that class.

(Note that we are using a class width of

98 97 91 89

92 83 84 83

82 91 93 90

Find the frequency.

a. 79 to 83

b. 84 to 88

c. 89 to 93

d. 94 to 98