I wanted to stress to all of you the importance of doing the HW. To the right, I have used MTH 132 SS18 data and mapped Final Exam averages based on HW averages.
As you can see the plurality of students (n values) scored 90-100% on their HW averages however you can see that the students who scored less than 90% on their HW did significantly worse (on average) on the Final.
In addition, because there were so many students who did 90-100% of their homework I decided to plot a grade distribution for this set of students. As you can see there are still a decent number of students (nearly 14%) who scored below 70% on the exam... despite doing so well on the HW! The takeaway lesson here is that not only do you need to do the homework, but you also need to understand how to do it! If you receive help from a tutor/friend/whoever you need to go back 24 hours later and make sure YOU understand it and could do it on your own if it came up on a quiz/exam.