You win a dollar 55% of the time, and your customer wins a dollar 45% of the time. How much profit would you expect to have if 7500 games are played?

Answer 1

x P(x)

+1 0.55

-1 0.45

Expected value each game = 1*0,.55 - 1*0.45 = 0.1

For 7500 games, expected value = 7500 * 0.1 = $750