You are given 5 to 4 odds against tossing three heads with three​ coins, meaning you win ​$5 if you succeed and you lose ​$4 if you fail. Find the expected value​ (to you) of the game. Would you expect to win or lose money in 1​ game? In 100​ games? Explain.

1 answer

P(HHH) = 1/8
So, E(x) = 1/8 * 5 - 7/8 * 4