Exercise 5| Conditional Probability| Worked Example

Get it right every time! See the 5th example on conditional probability and walk through the solution with me. An engineer buys products from 2 suppliers. Supplier A provides 60% of the products, Supplier B provides the remaining 40%. Supplier A has a defect rate of 5%. Supplier B has a defect rate of 8%. (a) Draw a tree diagram to illustrate the above information. (B) Calculate the probability of buying a good product. (C) Given that a batch of product is good, what is the probability that it came from Sup. A? (D) Given that a batch of product is defective, what is the probability that it came from Supplier A