Read pages 328 and 329 where some crucial definitions are explained. EXAMPLE 1 on page 328 gives a few examples of various sample spaces. 1. Do YOUR TURN 1 on page 329. In the box on page 330, your book lists SET OPERATIONS FOR EVENTS. Notice that these are the same as the set operations we used in Lesson 5. The box on page 331 gives you the BASIC PROBABILITY PRINCIPLE. You may be asked to find multiple probabilities given the same sample set. Notice that the number of elements in the sample space (your denominator) will not change with every part of the problem, and therefore should be the first thing you find. If you look at parts a and b in EXAMPLE 6, you will see exactly this