So in all of those situations, you have a 12.5% chance that x is going to be equal to three. And in this case, x would be a binomial variable. But look over here. When three is a fairly large percentage of our population, in this case, it is 15%, the percent chance of getting three boys without replacement is 10.5%, which is reasonably different from 12 1⁄2%. It is 2% different, but 2% relative to 12 1⁄2%. So that's someplace in between 10 and 20% difference in terms of the probability. So this is a reasonably big difference.