0.2 divided by 0.09. I just had to pause the video because there's some type of fighter jet outside or something. Anyway, hopefully they won't come back. But anyway, so we need to figure out the probability that the sample mean will be more than 2.02 standard deviations above the mean. And to figure that out, we go to a z table. And you can find this pretty much anywhere. Usually it's in any stat book or on the internet, wherever.