Thursday, June 7, 2007

Question 6

At a certain factory, the same products are manufactured on two independent lines A and B. Line A manufactures 60% of all the products, and line B manufactures 40%. Of the products manufactured on line A, 2% are defective, and of the products manufactured on line B, 1% are defective. When a single product manufactured at this factory was selected randomly, it turned out that this product was defective. What is the probability (percentage) that this product was manufactured on line A?

a) 25
b) 40
c) 60
d) 75

answer

No comments: