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1. |
What are the odds of choosing a red marble from a bag that contains 20 red marbles, 15 yellow marbles, and 35 green marbles? |
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A. |
4:7 |
B. |
4:5 |
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C. |
2:7 |
D. |
2:5 |
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Hint |
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2. |
What are the odds of not selecting a black ace from a standard deck of 52 cards? |
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A. |
25:26 |
B. |
26:1 |
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C. |
1:25 |
D. |
25:1 |
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Hint |
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3. |
If a die and coin are tossed, what is the probability of rolling an even number on the die and heads on the coin? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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4. |
Four blocks are placed in a paper bag. Each block is marked with a different letter, A, C, T, or E. Several children are playing a game by picking three blocks out of the bag without looking into the bag as they choose. Anyone who picks the three blocks that spell CAT wins a point. What is the probability of picking the blocks marked C, A, and T? |
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A. |
 |
B. |
 |
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C. |
 |
D. |
 |
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Hint |
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5. |
A menu consists of 5 different main dishes, 4 types of vegetables, and 3 types of salad. If a meal contains 1 main dish, 1 vegetable, and 1 salad, how many different meals can be ordered? |
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A. |
12 |
B. |
55 |
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C. |
60 |
D. |
23 |
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Hint |
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6. |
How many single-topping pizzas can be made from 2 styles of crust, 3 types of sauce, and 9 choices of toppings? |
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A. |
54 |
B. |
14 |
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C. |
72 |
D. |
9 |
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Hint |
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7. |
A bag contains 10 red marbles, 5 gray marbles, 12 black marbles, and 8 white marbles. Two marbles are randomly drawn from the bag without replacement. What is the probability of drawing a white marble followed by a marble that is not black? |
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A. |
 |
B. |
 |
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C. |
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D. |
 |
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Hint |
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8. |
The table shows the results when a number cube was rolled. What is the experimental probability of rolling a five? |
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A. |
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B. |
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C. |
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D. |
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Hint |
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9. |
The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a number that is less than or equal to three? |
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A. |
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B. |
 |
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C. |
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D. |
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Hint |
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10. |
A bag of marbles has 4 blue marbles, 1 red marble, 5 green marbles and 6 orange marbles. One marble is taken from the bag. It is not replaced. Then another marble is taken from the bag. What is the probability that the first marble is red and the second marble is green? |
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A. |
 |
B. |
 |
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C. |
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D. |
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Hint |
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11. |
Polltakers asked 1000 of the 600,000 registered voters about their preferences in the upcoming election. The results are shown in the chart. How many voters can be expected to be undecided? |
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A. |
170 |
B. |
1700 |
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C. |
102,000 |
D. |
10,200 |
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Hint |
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12. |
Polltakers asked 1000 of the 600,000 registered voters about their preferences in the upcoming election. The results are shown in the chart. How many voters can be expected to vote for Smith or Jones? |
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A. |
39,000 |
B. |
650 |
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C. |
650,000 |
D. |
390,000 |
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Hint |
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13. |
A school is thinking of selling candy bars as a fundraiser. The company states the probability of making $20,000 is 0.7 and the probability of losing $6500 is 0.37. The company claims that on average any club makes over $10,000. Is this claim accurate? Why or why not? |
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A. |
yes; The expected value is under $10,000. |
B. |
no; The expected value was over $10,000 |
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C. |
yes; The expected value was over $10,000 |
D. |
no; The expected value is under $10,000 |
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Hint |
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14. |
Two children are playing with a bag of four marbles. One is white, 2 are blue and 1is red. Each child takes a marble from the bag. The child with a red marble receives 3 points. Otherwise the child loses one point. Is the game fair? Why or why not? |
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A. |
yes; The expected value does not equal zero. |
B. |
no; The expected value is equal to zero. |
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C. |
no; The expected value does not equal zero. |
D. |
yes; The expected value is equal to zero. |
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Hint |
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