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# roller coaster....................

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Manager
Joined: 02 Sep 2008
Posts: 103

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03 May 2009, 21:08
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0% (00:00) correct 100% (00:53) wrong based on 0 sessions

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Intern
Joined: 15 Jan 2009
Posts: 46
Schools: Marshall '11

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03 May 2009, 22:48
Prob. of 1st car: 3/3=1
Prob. of 2nd car: 2/3
Prob. of 3rd car: 1/3
1*2/3*1/3=2/9
Re: roller coaster....................   [#permalink] 03 May 2009, 22:48
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