The daily problem for Feb 27 asks which of two special dice (1,1,3,3,5,5) and (2,2,2,2,5,5) has a better chance of winning if both dice are rolled simultaneously and the higher roll wins (In case of a tie, you roll both dice again.)
Notice that both dice have the same expected value.
Suppose we have two six-sided dice, A and B, whose faces have integers between 0 and 100 (inclusive).
You are not told what numbers are on the individual faces, but you are told that the probability that A wins is at least 1/2. (And hence the probability that B wins is at most 1/2)
Let and be the expected values of the rolls of A and B respectively.
Which of the following is true?
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