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Question: question with probability 25 two switches are selected...

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question: With probability = .25 , two switches are selected without replacement from box A, & with probability = .75 , two switches are selected without replacement from box B.

box A contains 4 defective switches & 6 good switches (prob = .)

box B contains 8 defective switches & 2 good switches (prob = .)

Determine the probability that the 2nd chosen switch is defective, given that the 1st chosen switch is defective.

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