For the edit that changes problem 9, I'm not sure if there was some intention behind having it reference another problem. I'd guess that it was in case a student forgot what the 3-post snap group was, but I'm not sure how much this matters; our class, at least, skipped both chapters 7 and 8.
For the edit that changes problem 9, I'm not sure if there was some intention behind having it reference another problem. I'd guess that it was in case a student forgot what the 3-post snap group was, but I'm not sure how much this matters; our class, at least, skipped both chapters 7 and 8.