A bias is something that has gone on too long or has gone too far out of line from what is normal in lotto. To identify a bias, you must know what is the norm (the expected or the average) for a drawing in your lotto game, to have a point of comparison. Something is out of line if it is much higher or much lower than the expected average. It's also important to note the number of drawings in a row that a bias has occurred.

print answer