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Arnold's Trivium
1991 Arnold's Trivium
99
99
Part of
1991 Arnold's Trivium
Problems
(1)
Problem 99
Source:
7/1/2010
One player conceals a
10
10
10
or
20
20
20
copeck coin, and the other guesses its value. If he is right he gets the coin, if wrong he pays
15
15
15
copecks. Is this a fair game? What are the optimal mixed strategies for both players?
probability