Q2a. If the probability of passing Accountancy class is 60 percent, Marketing course is 70 percent and probability of passing both Accountaney and Marketing is 35 percent, then what is the probability of passing at least marketing or Accountancy and or both courses? (Show working) 4 points Q2b. Suppose there are 8 tennis balls in a basket each of a different color. Find the numbers of ways in which you can combine and permute the tennis balls if you select 4 tennis balls at a time (Show working). 4 points 21 Page