An American roulette wheel contains 38 numbers. 2 are green, 18 are red, and 18 are black. Spin the wheel, and the little ball is equally likely to land on any of the numbers. Suppose you bet $1 on black. If the ball lands on a black number you win $1. If it doesn't you don't get anything. The probability of landing on a black space is 18/38 or 0.474. Find the expected value of your money after the one play described above.
This numerical is based on the Bernoulli distribution in which expected value have to find out ,we shall find it as
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