SOLUTION: A corporation has three methods of training employees. Because of time, space and location, it sends 20% of its employees to location A, 35% to location B, and 45% to location C. L

Question 894269: A corporation has three methods of training employees. Because of time, space and location, it sends 20% of its employees to location A, 35% to location B, and 45% to location C. Location A has an 80% success rate. That is, 80% of the employees who complete the course will pass the licensing exam. Location B has a 75% success rate, and location C has a 60% success rate. If a person has passed the exam, find the probability that the person went to location B.
*THE ANSWER ON MY BOOK SAYS 0.379, BUT DOESN'T EXPLAIN HOW IT ARRIVED AT THAT ANSWER.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
let say there are 100 employees sent to a b c
20 went to a .80*20 pass 16 pass
35 went to b .75*35 pass 26.25 pass
45 went to c .60*45 pass 27 pass
add them up
16+26.25+27=69.25 passed
b/total
26.25/69.25=.379

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