Plot 2 graphs. The first is the average of results. So 1 for heads, -1 for tails. Plot the running average over flips. It will start out all over the place. Ev

Plot 2 graphs. The first is the average of results. So 1 for heads, -1 for tails. Plot the running average over flips. It will start out all over the place. Eventually you will end up with a nice steady line near zero. Next plot the running sum of the flips. The line will wander all over the place. At any particular time it might be a long way away from 0. In some cases it will never return. So the average operation creates the tendency towards zero. The result can be useful sometimes, but it in no way helps predict the coin flips.