The vast majority of humans can pass college classes if they put forth the effort. You have to go to class, pay attention during class, read the book and review the material before the test. If you do this, you will not only pass you will actually make respectable grades. The problem many people have is they make choices like skipping class, not paying attention when the go (perhaps the dumbest thing I ever did in college - why go if you are not going to pay attention), not reading the book and then craming for the test at the last second. Not surprisingly, when I made these decisions I made below average grades. When I did it the right way, I made good grades.