Below represents data from 3 different STAT 250 classes, specific to their first exam grades. The summary statistics for each class are stated, as well as an unusual test grade from both class. Which class had the more unusual exam grade? Mean Standard Deviation Unusual Exam Grade O Class 1 O Class 2 O Class 3 Class 1 70.2 6.1 45 Class 2 85 12.4 40 Class 3 78.5 9.4 42