A credit union wants to offer incentives on a new credit card they are offering their clients and one of the problems is if they award a prize to 1 in 1000 purchases and their clients will use their card on an average of 52 times a year how can I determine the probability of each option preferred by the card holders such as A.cash back when they make an online purchase. B. cash back when they make a purchase at a shoe store. or C. an entry into a sweepstakes when they make a purchase. I need to determine the probability of each option.