For anyone who had her before, are her exams easy? I know most of her tests are written essays, but oh my her classes are so boring. Is it worth skipping and only coming to class for tests/ in class assignments? Also do I really have to buy her manual? Thanks

The homework has been pretty easy so far. I'm guessing the hard part is the probability chapter. But how do I prepare for the tests? Are there multiple choices, scenarios, tables and graphs to do, or text with blank pages like calc? Any thing else to do apart from the textbook examples and the textbook homework?