There is plenty in here you will already be confident with. Maybe try the summary quiz first to see whether you need to get some help from one or more of the tutorials (and then try the specific quiz for that section).
The statistical tests are included in this module (many students find this the toughest part of the maths for biology). Even if all seems good with the M1 Summary Quiz it might be worth taking a special look at M1.9 Statistical tests.
M1 Summary Quiz
Questions from all areas to help you gauge your understanding and choose which tutorials to do.