I am taking the test in a few weeks. Does anyone know if you have to memorize all the formulas for Stats, or is it included in the test?

I would say no you don't have to memorize all the formulas but you really should have a working knowledge of them. Take a look at the previous Statistics threads on this forum and you will see a long post that I put up with study material recommendations. I got a 75! I wrote the formulas down on note cards and looked through them every day and picked them up little by little. Have a general idea what happens when you increase a certain number and what kind of affect that will have on certain outcomes. Also get the calculator I recommended and you will be able to use it for some calculations such as SD, Factorials, permutations and such. Let me know if you need any other info.