An assembly line produces 10,000 automobile parts. Twenty percent of the parts are defective. An inspector randomly selects 10 of the parts.

1. Use the Multiplication Rule (sec 3.2) to find the probability that none of the parts are defective. Note, the events are not independent!
2. Because the sample is only 0.1% of the population, treat the events as independent and use the binomial probability formula to approximate the probability that none of the selected parts are defective.
3. Compare the results of parts (a) and (b).