Statistics Test Preparation With a Busy Weekly Schedule

I have a statistics test coming up, but my study routine changed after I started attending evening classes for another subject. I’ve been reviewing formulas and working through sample problems, yet I still need more practice with probability, distributions, and interpreting data. During my search for better ways to prepare, I typed take my statistics test because I was feeling behind and unsure where to focus. I’m now looking for legitimate study help, practice questions, and clear explanations to strengthen my understanding. Has anyone found useful online support for preparing for a statistics test?