Well, there's two different values that anything can take on. You can either have a 0 or you could either have a 1. The probability that you get a 0 is 0.4. So there's a 0.4 probability that you get a 0. And if you get a 0, what's the distance from 0 to the mean? The distance from 0 to the mean is 0 minus 0.6. Or I could even say 0.6 minus 0.