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# A certain roller coaster has 3 cars, and a passenger is

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Manager
Joined: 10 Oct 2008
Posts: 56
A certain roller coaster has 3 cars, and a passenger is  [#permalink]

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17 Oct 2008, 08:00
A certain roller coaster has 3 cars, and a passenger is equally likely to ride in any 1 of the 3 cars each time that passenger rides the roller coaster. If a certain passenger is to ride the roller coaster 3 times, what is the probability that the passenger will ride in each of the 3 cars?

A. 0
B. 1/9
C. 2/9
D. 1/3
E. 1

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Intern
Joined: 21 Aug 2008
Posts: 23

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17 Oct 2008, 08:12
1
Has 3/3 chances to ride in a new car the 1st time
Has 2/3 chances to ride in a new car the 2nd time
Has 1/3 chances to ride in a new car the last time

3/3 * 2/3 * 1/3 = 6/27 = 2/9

C

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Re: cars &nbs [#permalink] 17 Oct 2008, 08:12
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# A certain roller coaster has 3 cars, and a passenger is

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