Question
how topng Photos View all photos For oor merei. nghts n 2009, approximately 70% arrived on time thin 15 miules of scheduled art ral time) a Assuming that this success rate stil holds, if you randamly seloct tour fights and assume trey The probabity that all tour wiall arive on time is ompleto parts a ugh C beio. are independent, what is the probabity that at will arriva on time? (Type an inloger or decimal rounded to three decimal places as needed.) b. What is the probabity that at least one of the fights wli be late? The probabity of at least one of the four nots bang late is Type an nteger or dedimal rounded to troo decimal places as needed. ) c. If al four fights are on the same day in December and all four are fights to the same Chocse the comect arswer below oty, explan why the bincmial model is not appropriste for finding the probability that at least ona flight willbe late A. The tights might not be indspendent, because the weathar could be bad and hat might cause most of the Tights to be lafe. Trus, t one figts late, the othars are more daly to be ate A. 8. The number of outcomes is groater than two, since fights oould be ether on time, late due to t C. The number of flights is not fuod, bacause some tights might reed to make emergency landings and novar arive due to bad weather the had weather, or lass because the fights ahoad of it ware delayed due to bad woather ype heeto sh
Explanation / Answer
a) P(All four will be on time) = 0.70^4 = 0.240
b) P(At least one will be late) = 1-0.240 = 0.760
c) Option A is Correct
