On time arrivals Consumer reports rated airlines and found that 80% of flights involved in the study arrived on time (i.e, within 15 minutes of scheduled arrival time) assuming that the on-time...

On time arrivals Consumer reports rated airlines and found that 80% of flights involved in the study arrived on time (i.e, within 15 minutes of scheduled arrival time) assuming that the on-time arrivarl rate is representative of the entire commercial airline industry, consider a ramdom sample of 200 flights. What is the expected number that will arrive on time? What is the standard deviation of this distribution?