I had a similar experience myself at university until one of my good friends on the course showed me that it's actually quite simple once you approach it with an open mind! Since statistics forms an important component of many courses, not just geography, you may as well just accept it and do you best to understand, and you'll see, as I did, that it really isn't that bad! It's actually quite satisfying when you realise you can do it.
So, here are the resources I used for my lesson where I have tried to break it down to make it easy to understand.After re-capping which statistics they need to know for the AQA A2 Geography course, we did an example of MWU altogether on the board, then everyone tried out a second example on their worksheet. Hope it helps!