Community Credit Union has collected the following information for four activities and two types of credit cards: Activity Driver Silver Premium Activity Rate Processing transactions Transactions processed 20,000 12,000 $0.20 Preparing statements Number of statements 20,000 12,000 0.85 Answering questions Number of calls 40,000 60,000 2.00 Providing ATMs ATM transactions 80,000 24,000 1.80 There are 12,500 holders of Silver cards and 50,000 holders of Premium cards. Required: Calculate the unit cost (rounded to the nearest cent) for Silver and Premium credit cards.

Part (a) is relatively straight forward.there are 4 aces in a standard 52-card deck. so the probability that an ace is picked is just 4/52.part (b): note that there are 4 suits in a standard 52-card deck. so picking hearts will be 13/52 or 1/4.part (c): the probability condition or means we need to add the two probabilities because we do not want them simultaneously. so, we end up getting pr(ace) + pr(heart).from part (a), we found that picking an ace had a probability of 4/52, which is reduced down to 1/13.from part (b), we found that picking a heart had a probability of 1/4.so, the probability of an ace or a heart is 1/13 + 1/4 = 4/52 + 13/52 = 17/52.