I think you do make a good point. What you say makes sense. However, in looking at the test cases, it appears that 'your_points' are not included in the 'test_scores' and that 'class_size' matches the number of provided 'test_scores'. So, mathamatically, to get the most accurate result, you would have to add 'your_points' to the array of 'test_scores' and then increase 'class_size' by one. However, doing this will not change the outcome of the final comparison of class average to 'your_points'. Adding you score will bring the class average closer to your score, but cannot cause the average to move above or below your score.