The test (now moved to Monday) will cover all of the material on probability in Chapter 3 of the textbook.
For review, have a look at page 89 questions 9 and 10, page 92 question 4, page 94 questions 3 and 4, page 96 question 6, page 97 question 3, and page 102 question 5. It would also be a good idea to have a look at the questions on page 105 in Student Assessment 3.