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in roulette, there are 18 red 18 black and 2 green slots ball rolled 25 times what is the prob that the ball does not fall into...Asked by Joshua
in roulette, there are 18 red 18 black and 2 green slots
ball rolled 25 times
what is the prob that the ball does not fall into any green slots?
how do you set this up?
I did 1-.0536 and its wrong how to start? thanks so much!
ball rolled 25 times
what is the prob that the ball does not fall into any green slots?
how do you set this up?
I did 1-.0536 and its wrong how to start? thanks so much!
Answers
Answered by
Reiny
prob of green = 2/38 = 1/19
prob not green = 18/19
now you want this to happen 25 times in a row
prob of your event = (18/19^25 = .2588
prob not green = 18/19
now you want this to happen 25 times in a row
prob of your event = (18/19^25 = .2588
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