John Scored an 85 on His Most Recent Psychology Exam

John scored an 85 on his most recent psychology exam.Which of the following distributions would John least prefer (assuming he wishes to perform as well as possible,and higher test scores are more favorable) ?

A)
= 80,s = 104
B)
= 80,s = 5
C)
= 70,s = 15
D)
= 70,s = 10