Answer
The numbers 0 to 99 represent the number of people waiting in line on a particular day.
The sample size of 30 represents the number of days we recorded the number of people in the line.
Work Step by Step
There can be many ways to think about this question; I'll present one.
Let the numbers 0 to 99 represent the number of people waiting in line on a particular day.
Let the sample size of 30 represent the number of days we recorded the number of people in the line.
The data generated are:
26 15 17 20 17 3 84 5 85 90 23 55 49 79 54 5 73 27 66 52 27 74 5 19 53 14 96 11 35 72
Here the first value represents the number of people standing in line on day one and so on.
The numbers produced by the applet don't seem reasonable.