We are given these scores of two classes on a mathematics test:
Class 1: 49, 54, 55, 65, 76, 76, 76, 78, 78, 81, 83, 85, 88,
89, 89, 90, 90, 91, 93, 99
Class 2: 55, 59, 60, 65, 68, 76, 77, 77, 78, 80, 80, 80, 89,
89, 90, 92, 92, 95, 96, 98
For Class 1, 76 is
the mode (it occurs 3 times). For Class 2, 80 is the mode (it occurs 3 times).
Based only on the mode, it seems that Class 2 performed better than Class 1 on
the mathematics test.
Do you think the mode is affected by extreme scores like the
mean is?
