The following set of random numbers represents 20 simulations of three daily flights from New York to Los Angeles, with 0,1,2, or 3 representing a late departure and 4, 5, 6, 7, 8, or 9 representing an on-time departure. In how many of the simulations was there an on-time departure for all three flights? 459 981 317 444 432 858 194 192 639 709 742 626 702 258 955 880 505 804 771 132
We need to find the simulations which don't have any 0, 1, 2, or 3. These simulations are: 459 444 858 955. Then, the number of simulations there was an on-time departure for all three flights is 4.
