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October 2, 2014

October 2, 2014

Posted by **Anonymous** on Monday, February 4, 2008 at 2:34pm.

Find the probability that a)all three will pass b)just two out of the three will pass c)no car passes?

(might need a probability tree)

PLEASE HELP!

- Maths -
**drwls**, Monday, February 4, 2008 at 2:47pm(a) (4/5)x(5/7)x(1/2)= ?

(b) Add the probabilities that only Don, only Mag and only Joe pass

(1/5)(5/7)(1/2) + (4/5)(2/7)(1/2) + (4/5)(5/7)(1/2) = ?

(c) (1/5)x(2/7)x(1/2)+ ?

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