Expected value of a roulette bet

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SUMMARY

The expected value of a roulette bet when betting on red or black can be calculated using the formula: (n/2)*(18/37)*[(n/2+return)*(1/2)]*(18/37). In this scenario, A bets half of her initial amount (n) in the first round and then half of the remaining amount in the second round. If A wins both bets, the total value is fixed, as the outcome of the bets does not change the expected value calculation.

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huey910
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A has two bets(red or black) in a game of roulette. She bets half of what she has in the first round and then half of what she is left with after the first bet in the second bet. What is the expected value if she wins both bets?

Is this correct? (n is what the player has originally)
(n/2)*(18/37)*[(n/2+return)*(1/2)]*(18/37)
 
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Your question is confusing. If she wins both bets the total value is fixed.
 
Sorry I mistyped the question but I have figured the correct question myself already - thanks anyway!
 

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