This is most simply done by a grade breakdown. The first step in this process is to count the number of A's, B's, C's, and D's received on the test. This number represents the pass rate for a given test. Divide this number by the total number of students who took the test and you have the pass rate. To compute the failure rate, count the number of F's or failing grades and divide this number by the total number of students who took the exam.
Histograms are visual representations of how well a group of students did on a test or quiz.
These totals are later graphed on a chart. The resulting curve represents how the class did as a whole on a test. Add the grades of all students 2. Divide the total of the grades by the number of students 3. The result is the mean for that test or quiz.