Imagine three boxes, each of which have three slips of paper in them each with a number
marked on it. The numbers for box A are 2, 4 and 9, for box B 1, 6 and 8, and for box C
3, 5 and 7. One slip is drawn, independently and with equal probability, from each box.
(a) Compute
(b) Is there anything peculiar about these answers? Discuss the implications.