2. a company is conducting a sweepstakes, and ships two boxes of game pieces to a particular store. box a has 4% of its contents being winners, while 6% of the contents of box b are winners. box a contains 34% of the total tickets. if the contents of both boxes are mixed in a drawer and a ticket is chosen at random, a. what is the probability the ticket is a winner? b. what is the probability the ticket came from box a if it is a winner?