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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. |
4:5 |
B. |
2:7 |
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C. |
4:7 |
D. |
2:5 |
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Hint |
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2. |
Students at Garner Middle School are given the opportunity to determine the school's mascot, the mascot's name, and the school colors. The choices are narrowed down to those shown in the table below. What is the probability that the students will choose a lion named Gus for their mascot? |
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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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3. |
A weather forecaster states that the probability of rain is 30%. What are the odds that it will rain? |
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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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4. |
A hockey team has red sweaters, white sweaters, and blue sweaters. The team uses red or blue pants and red or white socks. Find the number of possible uniforms. |
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A. |
12 |
B. |
10 |
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C. |
7 |
D. |
5 |
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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. |
23 |
B. |
60 |
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C. |
55 |
D. |
12 |
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Hint |
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6. |
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 gray marble followed by another gray marble? |
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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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7. |
The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a four? |
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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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8. |
The table shows the results of rolling a number cube over three separate experiments. What is the experimental probability of rolling a six? |
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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. |
A number cube is tossed three times. What is P(3, 2, 3)? |
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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 contains 2 green apples, 3 yellow apples and 5 red apples. An apple is taken from the bag and is not replaced. Then another apple is taken. What is P(red, then yellow)? |
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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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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 vote for Jones? |
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A. |
300,000 |
B. |
18,000 |
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C. |
180,000 |
D. |
300 |
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Hint |
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12. |
A movie company polled 700 of its 500,000 moviegoers to select their favorite type of movie. The results are shown in the chart. How many moviegoers can be expected to see a musical or cartoon? |
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A. |
8,214 |
B. |
82,143 |
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C. |
115,000 |
D. |
115 |
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Hint |
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13. |
A chess club is thinking of selling magazines as a fundraiser. The company states the probability of making $6,000 is 0.67 and the probability of losing $2500 is 0.27. The company claims that on average any club makes over $5000. Is this claim accurate? Why or why not? |
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A. |
yes; The expected value is under $5000. |
B. |
yes; The expected value was over $5000 |
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C. |
no; The expected value was over $5000. |
D. |
no; The expected value is under $5000. |
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Hint |
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14. |
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. |
no; 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 is under $10,000. |
D. |
yes; The expected value was over $10,000 |
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Hint |
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