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A roulette wheel has 38 slots, numbered 0, 00, and 1 to 36. The slots 0 and 00 are colored green, 18 of the others are red, and 18 are black. The dealer spins the wheel and at the same time rolls a small ball along the wheel in the opposite direction. The wheel is carefully balanced so that the ball is equally likely to land in any slot when the wheel slows.
You decide to play roulette 400 times, each time betting the same amount on red. Check that the Normal approximation is permissible, and use it to find the probability that you will lose money:
 one year ago
 one year ago
A roulette wheel has 38 slots, numbered 0, 00, and 1 to 36. The slots 0 and 00 are colored green, 18 of the others are red, and 18 are black. The dealer spins the wheel and at the same time rolls a small ball along the wheel in the opposite direction. The wheel is carefully balanced so that the ball is equally likely to land in any slot when the wheel slows. You decide to play roulette 400 times, each time betting the same amount on red. Check that the Normal approximation is permissible, and use it to find the probability that you will lose money:
 one year ago
 one year ago

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AperogalicsBest ResponseYou've already chosen the best response.1
@mrasb2011 you have to first find the probability of winning(let p be the prob.) p=18/38=9/19 and probability of loosing(let q be the prob.)=19/19=10/19 this is if he played one time if he played 400 times then prob=(10/19)^400 :)
 one year ago

ShadowysBest ResponseYou've already chosen the best response.0
Which colours mean that you lose money? This is quite important.
 one year ago

AperogalicsBest ResponseYou've already chosen the best response.1
betting on red so loose on other:)
 one year ago

ShadowysBest ResponseYou've already chosen the best response.0
ah. lol Guess street sense is needed lol
 one year ago
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