The rates of on-time flights for commercial jets are continuously tracked by the U.S. Department of Transportation. Recently, Southwest Air had the best rate with 80 % of its flights arriving on time. A test is conducted by randomly selecting 11 Southwest flights and observing whether they arrive on time. (a) Find the probability that at least 10 flights arrive late . C] (b) Would it be unusual for Southwest to have 2 flights arrive late? (Enter YES or NO) C] A raffle is being held at a benefit concert. The prizes are awarded as follows: 1 grand prize of $8,800.00, 2 prizes of $910.00, 5 prize of $50.00, and 12 prizes of $20.00. Suppose 16000 raffle tickets are sold, if you buy one ticket for $3.00 then what is your expected value for this raffle? C] (Note: Include dollar signs in your answer)