1. Unit 4 – Combinatorics and Probability Section 4.4 – Probability with Combinations Calculator Required

2. A bag contains seven pennies, four nickels, and five dimes. Three coins are selected at random. Find the probability of each event. e. One penny, one dime, one nickel f. One dime, two nickels

3. A bag contains five red, nine blue and six white marbles. Two are selected at random. Find the probability of each selection. a. two red b. two blue c. one red, one blue b. one red, one white

4. Sharon has eight mystery books and nine science fiction books. Four are selected at random. Find the probability of: a. four mystery books b. four sci-fi books c. two mysteries, two sci-fi d. Three mysteries, one sci-fi

5. A ball contains three red balls, two blue balls, and one white ball. If two are drawn, find the probability that both are red. Two die are rolled. Find the probability that their sum is 9. 1 2 3 4 5 6 X X

6. A card is drawn from a 52 card bridge deck. A second card is then drawn. Find the probability of each event. a. both are tens b. both are aces c. either both are tens or both are aces.