1. A car dealership sells 2 cars on average every day. What is the probability that it sells more than 2 cars on 3 dfferent days in a five-day period? Assume that car sales on any given day are independent of sales on any other day.

2.A peesonnel director is interviewing candidates for three identical open positions. Only 10% of the candidates are qualified. The dirwctor spends 30 minutes on each interview. However, is she finds a good candidate that she wants to hire, she spends an additional 15 minutes discussing the job requirements. Find the expected value of the total time the entire process will take.