... definition:Definition 2.1 If A and B are events, and P(B) > 0, thenP (A|B) =P (A ∩B)P (B). (2.5)30 CHAPTER 2. PROBABILITY 1-1 - 1-1 -1 2-2 - 2-2 -2 3-3 - 3-3 -3 4-4 - 4-4 -4 5-5 - 5-5 -5 6-6 - 6-6 -6 By simple enumeration, ... mashed potatoes, green beans },{ stuffing, green beans, mashed potatoes },{ mashed potatoes, stuffing, green beans },{ mashed potatoes, green beans, stuffing },{ green beans, stuffing, mashed potatoes ... left hand and, foreach such choice, there are three ways to choose a ring for the right hand.Hence, there are 4 ·3 = 12 ways to choose a ring for each hand. This is an instance of a general...