When a pair of dice are tossed, the results may be any whole number from 2 through 12. In the game of craps one can win by tossing either a 7 or 11 on the first roll. What is the probability of doing this? (Hint: There are 36 ways that a pair of six-sided dice can be tossed. What portion of them result in either a 7 or an 11?)