Question

ms. morgan 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: 95, 98, 96, 88, 86, 85, 87, 85, 95, 98, 90, 83. test score (classes) and frequency: 79 to 83, 84 to 88, 89 to 93, 94 to 98.

Explanation:

Step1: Count scores in 79 - 83

Check each score: 83 is in this range. So frequency = 1.

Step2: Count scores in 84 - 88

Scores: 88, 86, 85, 87, 85. That's 5 scores. Frequency = 5.

Step3: Count scores in 89 - 93

Score: 90. Frequency = 1.

Step4: Count scores in 94 - 98

Scores: 95, 98, 96, 95, 98. That's 5 scores. Frequency = 5.

Answer:

Test score	Frequency
84 to 88	5
89 to 93	1
94 to 98	5