And we'll get the calculator out in a second to actually calculate what this is. Now, let's do the same thing for the fair coin. If I did pick a fair coin, the probability of getting heads four times in a row is going to be 0.5 times 0.5 times 0.5 times 0.5. Or the probability of getting the fair coin, which is 1 4th chance, times the probability and getting four heads in a row is going to be 1 4th times all of this. So it's going to be 1 4th times, this is just 0.5 times itself, four times. So that's 0.5 to the fourth power. So let's get the calculator out to calculate either one of these.