A statistics student made the following grades on the first 6 tests: 76, 82, 92, 95, 92, 86.The total number of tests for the semester is 7.If the median score for the whole semester was 92, what could not have been the score of the last test?
A)77
B)92
C)93
D)94
E)96

Question

Quizplus · Accepted Answer

To find the median of 7 scores, the scores must be arranged in order, and the 4th score will be the median. The current scores are 76, 82, 86, 92, 92, 95. If the median is 92, the 4th score must be 92. Adding a score of 77 would make the scores 76, 77, 82, 86, 92, 92, 95, making the median 86, not 92. Thus, 77 cannot be the score of the last test.

A Statistics Student Made the Following Grades on the First