Question

Part II. (8 Points) In a certain assembly plant, three machines (A, B, and C) make 22%, 37%, and 41%, respectively, of the products. It is known from past experience that 3%, 5%, and 2% of the products made by each machine, respectively are defective. Please show work. No work no credit.
Draw a tree diagram of the scenario.
If a product is chosen at random, what is the probability that it is defective?
Given a randomly selected product was found to be defective, what is the probability it was made by machine C?
 

Answer 1

@Loser66

Answer 2

part b I need help with

Answer 3

@zepdrix