Asked by Anonymous
The probability that Don's car passes the MOT test next time is 4/5, that Mag's car passes is 5/7 and that Joe's car passes is 1/2.
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!
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!
Answers
Answered by
drwls
(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)+ ?
(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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