Actually, let me just do both of these calculations. So this probability is that one right over there. And then this one down here is 1 divided by 4 times 0.5 to the fourth power. So it's equal to that right over there. So let's be clear. The probability of picking the unfair coin and then getting four heads in a row is this top number. It's like roughly 6.9% chance that you get the unfair coin and then get four heads in a row.