A friend tells you, "In the 7:30 a.m. lecture for Statistics, 9 students failed. However, 20 students failed in the 1:30 p.m. class. The 1:30 p.m. professor is a tougher grader than the 7:30 a.m. teacher." Which of the following information will you require to conclude if 1:30 p.m. professor is a tougher grader than 7:30 a.m. professor?
(A) Class sizes
(B) Qualification of both professors
(C) Age of both professors
(D) Gender of both professors
Answer: (A) Class sizes
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.