Question: What percent of the students in Exercise earned a grade that was below 80?
Exercise: The following grades were earned by students on a midterm business math exam
75 82 63 88 94
81 90 72 84 87
98 93 85 68 91
78 86 91 83 92
Make a frequency distribution of the data using the intervals 60-69, 70-79, 80-89, and 90-99.