In class exam, do for problem la, 1b, 2a,2b,3c, 8a and the others do at home until Monday December 11, 2017 at 8 am. Problem 1 Customer in a certain city are continually switching the brand of soap they buy. If a customer is now using brand A, the probability he will use brand A next week is 0.5, that he switch to brand B is 0.2, and switches to brand C is 0.3. If he now use brand B,