Six squared is going to be 36. You add these two together, this is going to be equal to 100. And so the variance of this distribution right over here is going to be equal to 100. Well what's the standard deviation of that distribution? Well it's going to be equal to the square root of the variance. So the square root of 100, which is equal to 10. So for example, one standard deviation above the mean is going to be 18.