3. Leo's Furniture Store decides to have a promotion. The promotion involves rolling two dice. With every purchase you get a chance to save based on your sum rolled: . Roll of 5, 6, 7, 8, or 9-save $20. Roll of 3, 4, 10, or 11- save $50. Roll of 2 or 12-save $100. a) Show the probability distribution table for each of the different amounts that someone could save for their purchase. b) Determine the expected savings for any random purchase. [2] [2]