By Jordan Ellenberg

Page 59-Page 104

The results of an experiment tend to settle down to a fixed average when the experiment is repeated again and again. For example, if you flip 10 coins together, and count how many heads there were, it will be like 4,4,5,6,5,4,3,3…, but if you flip a hundred coins, the number will be 46,48,48,51,50…, and when you flip a thousand coins, the number will be 486, 401,489, 472,510… The larger amount of coins you flip, the more likely that the number of heads will be 50% of the number of coins you flip.