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Old 08-02-2007   #1
charmyne
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Default j is one of the 20 chosen for a lottery. what is the probability that he

win after 5 others draw and dont win? Sandra is one of the 20 chosen to join a lottery. In the lottery you will just choose an envelope and then that will tell whether your a winner or not. what is the probability that sandra will win after 5 others draw an envelope and are not winners?
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