One, two, three, and this whole thing is my bag right over here. That is my bag of coins. If I were to, when I take my hand in, if I were to take any of these white coins, there's a 50% chance that it gets heads on any flip. The odds of getting two heads in a row would be 50% times 50% for these white coins. But I don't know I'm going to get a white coin. If I get one of these orange coins, I have a 60% chance of coming up heads. And the odds of coming up 60%, if I have picked one of these orange coins, the probability of getting heads twice is going to be 60% times 60%.