SOLUTION: Three machines turn out all the products in a factory, with the first machine producing 10% of the products, the second machine 15%, and the third machine 75%. The first machine pr

Question 1203815: Three machines turn out all the products in a factory, with the first machine producing 10% of the products, the second machine 15%, and the third machine 75%. The first machine produces defective products 6% of the time, the second machine 15% of the time and the third machine 8% of the time. What is the probability that a non-defective product came from the second machine? (Round your answer to four decimal places.
Answer by ikleyn(52780) (Show Source): You can put this solution on YOUR website!
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Three machines turn out all the products in a factory, with the first machine
producing 10% of the products, the second machine 15%, and the third machine 75%.
The first machine produces defective products 6% of the time, the second machine 15% of the time
and the third machine 8% of the time. What is the probability that a non-defective product
came from the second machine? (Round your answer to four decimal places.
~~~~~~~~~~~~~~~~~~~~~~~~

It is about calculating a conditional probability.

This conditional probability is the fraction, whose denominator is the probability
to get a non-defective product from all 3 machines, while the numerator
is the probability to get a non-defective product from second machine.


By knowing it, we write the formula immediately


    P =  = 0.1399  (rounded as requested).



ANSWER.  P = 0.1399  (rounded as requested).

Solved, with complete explanations.

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