And so we can use this population sample-- or I shouldn't call it the population-- we should use this sample right here to figure out the expected number of people who would get sick or not sick.

所以我们可以使用这个人口样本——或者我不应该称之为人口——我们应该在这里使用这个样本来计算出预计会生病或不会生病的人数。