1. 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 10 Southwest flights and observing whether they arrive on time.

(a) Find the probability that at least 3 flights arrive on time.

Results for this submission Entered Answer Preview Result 0.2 0.2 incorrect NO NO correct At least one of the answers above is NOT correct. (1 point) 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 10 Southwest flights and observing whether they arrive on time. (a) Find the probability that at least 3 flights arrive on time. (b) Would it be unusual for Southwest to have 2 flights arrive late? (Enter YES or NO) no