(Solved): The frequency of each type of transaction (in the second column) can be used as the percentage of ...

The frequency of each type of transaction (in the second column) can be used as the percentage of each type of transaction. The average number of "selects" operations required for each type of transaction is shown. Let $$A$$ denote the event of transactions with an average number of selects operations of 12 or fewer. Let $$B$$ denote the event of transactions with an average number of updates operations of 12 or fewer. Calculate the following probabilities. Round your answers to four decimal places (e.g. $$0.9876$$ ). (a) $$P(A)$$ : (b) $$P(B)$$ : (c) $$P(A?B)$$ : (d) $$P\left(A?B^{?}\right)$$ : (e) $$P(A?B)$$