Question

ms. diaz 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 5.) test score: 87, 81, 90, 83, 82, 81, 93, 90, 86, 93, 88, 97. test score | frequency: 79 to 83, 84 to 88, 89 to 93, 94 to 98

Explanation:

Step1: List all test scores

Scores: 87,81,90,83,82,81,93,90,86,93,88,97

Step2: Count scores in 79-83

Scores:81,83,82,81 → Frequency=4

Step3: Count scores in 84-88

Scores:87,86,88 → Frequency=3

Step4: Count scores in 89-93

Scores:90,93,90,93 → Frequency=4

Step5: Count scores in 94-98

Scores:97 → Frequency=1

Answer:

Test score	Frequency
84 to 88	3
89 to 93	4
94 to 98	1