He wants to figure out what percentage of them are defective. He can't look at all 100,000 ducks. It's not practical. So he samples 10 of them. One, two, three, four, five, six, seven, eight, nine, 10, and he finds that one out of those 10 are defective, 10% of the 10. So first of all, this is clearly a sample study. This is a sample study.