Let's do part B. Between 7.3 and 11.7 kilograms. So between 7.3, that's right there, that's two standard deviations below the mean, and 11.7. It's one, two standard deviations above the mean. So they're essentially asking us, what's the probability of getting a result within two standard deviations of the mean? This is the mean right here. This is two standard deviations below.