And we could also find the probability that we select three boys without replacement. And then we could think about what proportion is our sample size of the entire population. And then we could say, does the 10% rule actually make sense? So this first column where we are picking three boys with replacement, in this case, because we are replacing, each of these trials are independent, are truly independent. And if our trials are independent, then x would be truly a binomial variable. Here, we aren't independent because we are not replacing, so not independent. And so officially, in this column right over here when we're not replacing, x would not be considered a binomial random variable.