500
Choose one person at random form a group of which 50% are employed, 20% are unemployed, and 30% are not in the labor force. There are now three possible outcomes, but the principle is the same. One digit simulates one person:
For example:
What is
0, 1, 2, 3, 4 = employed
5, 6 = unemployed
7, 8, 9 = not in the labor force?