But if we just want to figure out the z-score, 19 divided by 6.3 is equal to 3.01. So it's very close. 3.02, really, if I were to round. So it's very close to 3.02. It's z-score is 3.02. Or a grade of 100 is 3.02 standard deviations above the mean. So remember, this was the mean right here.