And then the standard deviation here, we figured this out too, this is equal to 10. And so when we pick this, we're gonna go back to the main screen, enter. So this is, we could have just typed this in directly on the main screen. This says, look, we're looking at a normal distribution. We want to find the cumulative area between two bounds. In this case, it's from negative infinity to zero. From negative infinity to zero, where the mean is eight and the standard deviation is 10.