Question 17 of 36 1 Points Dr. Grey teaches General Surgery, and she is interested in measuring her students' knowledge of the subject. In order to do so, she gave the same 50- item test to all four of her classes. Use this information to answer items 16-20. Class A Class B Class C Class D n 30 25 30 20 mean 315 30 43 22 median 31 25 45 25 mode 30 20 47 30 Assuming equal variability of scores across classes, the class whose distribution would be expected to be most symmetrical is A. Class A B. Class B O C. Class C O D. Class D Reset Selection Mark for Review What's This