Mathematics, 24.12.2019 03:31 renelopez79318

Aroulette wheel has 15 red slots, 15 black slots, and 2 green slots. when it is spun, a metal ball has an equal chance to land in each slot. a bet on red pays even money, i. e., if the ball lands in a red slot you win an amount equal to your bet and if the ball does not land in a red slot you lose the amount you bet. you come to the roulette wheel with only $1, which you bet on red. you continue to bet all of your money on red each time the wheel is spun, until you lose. let x be the number of spins up to and including the time that you lose. what is var(x)?

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