there is a book called "the Statistics Problem Solver" for $4
(used) on amazon. Buy it! These problem-solver books are great
for math & science classes. With thousands of solved problems
and the steps for solving them shown, its like having a grad
student tutor at your elbow. You have to use the book correctly,
though. The wrong way is to look at your homework problem, thumb
thru the book until you see a similar one, then apply it blindly
to your HW. A 5th grader could do that. Instead, use the book as
a way to get practice until you understand the concepts. Go to
the chapter matching your current classwork, cover up the
answers and start working problems. If you get it wrong, read
the correct steps, cover them up, do it again. Keep working
problems until you get it. When you get midterms in class you'll
almost be laughing because you know you can do them all. Keep in
mind that a standard expectation for a college class is 2-3
hours outside of the class for every hour in it. Your class will
meet 3x a week for