The following corrections should be made to the answer sheet provided for the Probability and Statistics Review:

3 (c)  120   (this answer was omitted)

4(b)  100/900 (correction)

4(c)  1,247,400 (correction)

11 (c)  Should read something along these lines:

“25% of 1st hour scored higher than 72 and 50% of 2nd hour scored below 72.”

13 (i) 98.30%