Let me get my calculator out to actually calculate these values. Let me get my calculator out. So this is going to be 0.4 times 0.36 plus 0.6 times 0.16, which is equal to 0.24. So our standard deviation of this distribution is 0.24. Or if you want to think about the variance of this distribution is 0.24, and the standard deviation of this distribution, which is just the square root of this, is going to be the square root of 0.24. And let's calculate what that is. That is going to be, let's take the square root of 0.24, which is equal to 0.48.