Question

mr. foster gave his students a biology test last week. here are the test scores for each of the eleven 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 6.) test score: 70, 71, 72, 89, 77, 84, 73, 82, 88, 72, 73. test score (frequency table): 66 to 71, 72 to 77, 78 to 83, 84 to 89

Explanation:

Step1: Count scores in 66 - 71

Scores: 70, 71. So count is 2.

Step2: Count scores in 72 - 77

Scores: 72, 77, 73, 72, 73. Count: 5.

Step3: Count scores in 78 - 83

Scores: 82. Count: 1.

Step4: Count scores in 84 - 89

Scores: 89, 84, 88. Count: 3.

Answer:

Test score	Frequency
72 to 77	5
78 to 83	1
84 to 89	3