Question

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?
339 931 317 444 432 858 194 192 649 709
742 626 702 258 955 880 505 854 774 132
A. 6
B. 3
C. 5
D. 4

Answer 1

To find how many simulations had an on-time departure for all three flights, we check if each simulation consists of numbers representing on-time departures. There are 4 simulations out of 20 that meet this condition.

Step-by-step explanation:

To determine how many simulations had an on-time departure for all three flights, we need to look at each simulation in the set of random numbers. An on-time departure is represented by the numbers 4, 5, 6, 7, 8, or 9. So, for each simulation, we check if all three numbers in the simulation are within this range. If they are, we count that simulation as having an on-time departure for all three flights. Going through the given set of random numbers, we find that there are 4 simulations with an on-time departure for all three flights. Therefore, the answer is D. 4.

Answer 2

A) 6

Step-by-step explanation:

When you count the groups of numbers, be aware of which groups have 0,1,2,3 in them.

You’ll notice that 444, 858, 649, 955, 854, 774 do not have the numbers 0,1,2,3 in it.