Question

mr. hernandez 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: 73 84 88 71 72 72 89 70 77 73 82 test score frequency 66 to 71 72 to 77 78 to 83 84 to 89

Explanation:

Step1: Count scores in 66 - 71

The scores in the range 66 - 71 are 71, 70. So the frequency is 2.

Step2: Count scores in 72 - 77

The scores in the range 72 - 77 are 72, 72, 73, 73, 77. So the frequency is 5.

Step3: Count scores in 78 - 83

The score in the range 78 - 83 is 82. So the frequency is 1.

Step4: Count scores in 84 - 89

The scores in the range 84 - 89 are 84, 88, 89. So the frequency is 3.

Answer:

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