6. Four fair coins are tossed. Find the probability of getting exactly 2 heads. 7. Four fair coins are tossed. Find the probability of getting at least 2 heads. 8. A fair die is rolled and a card is...

6. Four fair coins are tossed. Find the probability of getting exactly 2

heads.

7. Four fair coins are tossed. Find the probability of getting at least 2

heads.

8. A fair die is rolled and a card is chosen at random. What is the

probability that the number on the die matches the number on the

card? (An ace is counted as a one.)