Hello,

I am struggling to complete these 5 questions, I am unsure to how and where to start, including what is the right formula or strategy to tackle these questions. For question 1, is A 0.27 and B 0.73? What is the strategy for the rest of the questions. Especially question 3, I am unsure of what to do first.

1. Police plan to enforce speed limits during the morning rush hour on four different routes into the city. The traps on routes A, B, C, and D are operated 40% , 30%, 20%, and 30% of the time, respectively. Biff always speeds to work, and he has probability 0.2, 0.1, 0.5, and 0.2 of using those routes. (a) What is the probability that he'll get a ticket on any one morning? (b) What is the probability he'll go five mornings without a ticket? 2. Let Y denote the number of \"heads\" that occur when two loaded coins are tossed. Assume the probability of getting l'heads\" is 0.4 on either coin. a. Derive the probability distribution of Y b. Derive the mean and variance on