A Bayesian statistician, on the other hand, would say, “Wait a minute. We also need to take into account our prior knowledge about the coin.” Did it come from the neighborhood grocery or a shady gambler? If it’s just an ordinary quarter, most of us would not let the coincidence of nine heads sway our belief so dramatically. On the other hand, if we already suspected the coin was weighted, we would conclude more willingly that the nine heads provided serious evidence of bias.
