According to an airline flights on a certain route are on time 80% of the time. Supposed 10 flights are randomly selected and the number of on-time flights is recorded. A) find and interpret the probability that exactly 7 flights are on time B) find and interpret the probability that fewer than seven flights are on time C) find and interpret the probability that at least seven flights are on time D) find and interpret the probability that between five and seven flights inclusive are on time