The square root of 2 times 100, this is equal to 10 square roots of 2. That's that first data set. Now the variance of the second data set is just going to be the square root of 2. Sorry, the standard deviation of the second data set is going to be the square root of its variance, which is 2. Which is just 2. So the second data set has 1 tenth the standard deviation as this first data set. This is 10 roots of 2, this is just the root of 2.