1. Tues 9/4 & Wed 9/5 AGENDA Warm up text p.805; 18-23 Go over homework Test Review Game Go over review packet

2. Go over Homework P.548; 6-15 Base = 70 -7 pts for each problem not attempted. 10 pts for each correct. 6) Dependent7) independent 8) ¼9) ½10) 1/40 11) 5/24 12) 8/5113) 4/2714) 015) 1/32 19) 0.0049

4. A bag contains 4 red marbles, 16 yellow marbles and 5 purple marbles. What is the P(red, then purple) if a marble is selected and replaced, and then a 2 nd marble is selected? 4/25 5/25 = 4/125

5. License plates in a certain state contain 2 letters followed by 3 digits. Assume that all combinations are equally likely. Find the number of possible license plates. 2626101010 = 676,000

6. There are 52 cards in a deck. What is the probability of drawing a four, replacing it, and then drawing a face card? 4/52 16/52 = 4/169

7. At the ice cream shop, there are 10 flavors and 3 cones to choose from. How many possible outcomes are there? 3 10 = 30

8. If A and B are independent events such that P(A)= 0.25 and P(B)=0.18, what is the P(A or B)? 0.25 + 0.18 = 0.43

9. You flip a coin and toss a 1-6 number cube. Find P(heads and 4). 1/2 1/6 = 1/12

10. The reception is being catered. The caterers offer 2 appetizers, 2 salads, and 3 main courses for each eighth grade student to choose for dinner. If the caterers would like 36 different combinations of dinners, how many desserts should they offer? 223x=36, 12x=36, x=3 desserts

11. A password consists of 3 letters. The password is case sensitive, which means upper-case and lower-case letters are different characters. What is the probability of randomly being assigned the password yEs? 1/521/521/52 = 1/140608

12. If A and B are independent events such that P(A)= 0.25 and P(B)=0.33, what is the P(A and B)? 0.25 0.33 = 0.0825

13. A password contains 4 digits. Each digit is a number between 0-9. What is the probability that each digit will be a 2? 1/101/10 1/10 1/10 = 1/10,000

14. Cobb County Schools needs 20 representatives for the Board of Education Committee. Six members will come from the high schools, six will come from the middle schools, and eight will come from the elementary schools. The superintendent selects one of the members to be a spokesman for the whole committee. What is the probability that he will choose a middle or high school representative? 6/20 + 6/20 = 12/20 = 3/5

15. In the United States, 2/5 of all households own 2 or more televisions, and 1/3 of all households own at least one dvd player. What is the probability that a household picked at random will have 2 or more televisions and at least one dvd player? 2/5 1/3 = 2/15

16. Steve has two bags. Bag 1 contains 3 bandaids, 2 cotton balls, 4 toothpicks, and 2 combs. He also has a second bag containing 2 rubberbands and 1 brush. What is the probability that Steve selects a bandaid from bag 1 and a rubberband from bag 2? 3/11 2/3 = 2/11

17. There are 52 cards in a deck. What is the probability of drawing a king or an ace? 4/52 + 4/52 = 8/52 = 2/13

18. A company has a 5 symbol code. The code consists of two letters and 3 digits that can be repeated. How many different codes are possible? 26 26 10 10 10 = 676,000

19. Fred rolls 2 number cubes. What is the probability that the two numbers will have a sum of 8? 5/36

20. Answers for review packet