[laja]

Here is a point to illustrate the truth, lets say you flip a coin heads you win, tails you lose. If you flip it 4 times in 1 hour, it is a lot easier for it to be drastically more tails than if you flip it 16 times in an hour. As the number increases the variance decreases, had you played 400 hands total in 1 day on 4 different tables, or 400 hands in 4 days on only 1 table, they require the exact same bankroll and have the exact same variance. # of hands played is the only variable in determining variance.