And then finally, I'm running out of space, plus 5.5 minus 4.6 squared. And then we're going to divide all of that by 5 to get our population variance. And so what's that going to give us? Let's get our calculator out. So 4 minus 4.6 squared, that's negative 0.6 squared. Negative 0.6 squared is going to be the exact same thing as 0.6 squared. So let me write that as 0.6 squared plus 4.2 minus 4.6 is negative 0.4.