A teacher gave a unit test to both of her statistics classes. The mean test grade for Class A was 77 points, with a standard dev
iation of 5 points, whereas the mean test grade for Class B was 80, with a standard deviation of 7 points. Kyle, in Class A, received an 82 on the test, and Caleb, in Class B, received an 87. Whose performance on the unit test was better relative to their class?
