Remember, the variance is the probability or the weighted sum of the squared distances. So this is the difference between 0 and the mean. And then plus, there's a 0.6 chance that you get a 1. The difference between 1 and 0.6, 1 and our mean, 0.6, is that, and then we are also going to square this over here. Now what is this value going to be? This is going to be 0.4 times 0.6 squared. This is 0.4 times 0.