Salt Lake City International Airport had the highest 2016 on-time arrival rate among 29 U.S. airports with an 87. 1% on-time rate. Choose 5 arrivals at 10 random and find the probability that at least 1 was not on time. Plat least IN)= P none on time ( 1=5 and plon time ) = $871 1 up thetentin plall were ) = 6 871)5 =.5 at least was not plat last ) = 1 - Pla 1 - .50