Before any discussion of randomness here is an exercise to illustrate the concept.
Go to www.random.org Use the True Random Number Generator. Stay with a minimum of 1 and change the maximum to 10. Assign activities to each number. For example 1 or 2 means just sit on the couch, 3 means eat a quick snack, 4 or 5 or 6 means read a book on the couch and 7,8,9, or 10 means watch TV on the couch. Choose any activities that suit you really.
So if you allow one minute per activity and generate a random number ten times, you should sit for 2 minutes, eat for a minute, read for 3 minutes and watch TV 4 minutes, at some time during the ten minutes, right, because life is fair – right?
Let me know what you notice about your findings…