A producer of a cartain type of electronic component ships to suppliers in lots of twenty. Suppose that 60% of all such lots contain no defective components and 30% contain one defective component and 10% contain two defective components.
A. If a lot has only one defective unit, what is the probability that you would randomly choose two non-defective parts.
B. What is the probability of selective two non-defective parts in a randomly selected lot?
C. Based on the selection of two non-defective parts, what is the probability that one defective exists in a lot?
D. What probability distribution best model the number of defectives per lot?
Estimate the model parameters based on you answer to part c.