Tom and Abby wanted to see whose grades were the closest to their final grade after their last unit test.

For Tom’s 5 lesson/test grades he has: 74, 65, 88, 90, 100, 75

For Abby’s 5 lesson/test grades she has: 77, 78, 80, 80, 90, 93.

Feel free to use the worksheet to show your work, or complete all work on your own paper. Either way, all work must be shown. If needed, round to the nearest tenths place.

Question 1: What is the mean or average percent for both Tom and Abby’s overall unit grade?

Question 2: What is the MAD of Tom and Abby’s unit grade?

Question 3: Which student’s (Tom or Abby) grades were the closest to their overall average? For this student, what could this mean about their grades? Make sure to answer both parts of this question.