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1. |
A bag contains 4 green marbles, 3 red marbles and 3 blue marbles. Sharon picks a marble without looking. What is the probability that she will pick a red 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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2. |
There are 8 floats in a parade. If the float carrying the grand marshal must be first, how many ways can the parade organizer pick the next two floats in the parade? |
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A. |
28 |
B. |
21 |
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C. |
56 |
D. |
42 |
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3. |
How many ways can a committee of 2 girls and 1 boy be formed from a class of 13 girls and 7 boys? |
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A. |
91 |
B. |
546 |
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C. |
1,092 |
D. |
169 |
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4. |
A card is drawn at random from a standard deck of 52 playing cards. What is the probability of drawing a Jack, Queen, or King? |
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A. |
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B. |
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C. |
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D. |
 |
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5. |
There are 9 players on a softball team. How many ways can the coach pick the first 5 batters? |
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A. |
15,120 |
B. |
3,024 |
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C. |
60,480 |
D. |
45 |
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Hint |
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6. |
Eight points are located on a circle. How many line segments can be drawn with these points as endpoints? |
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A. |
56 |
B. |
16 |
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C. |
4 |
D. |
28 |
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Hint |
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7. |
A number cube is rolled and a coin is tossed. What is the probability of rolling a number greater than 4 and tossing tails? |
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A. |
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B. |
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C. |
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D. |
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8. |
Ten cards numbered 1-10 are placed in a hat. What is the probability of randomly drawing a card with an even number then a card with a number greater than or equal to five if the first card is replaced? |
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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 week before an election, a telephone poll was conducted to see how registered voters would vote for Issue 1. The table shows the results of the five-day poll. If 10,000 people vote on election day, how many should be expected to vote no on Issue 1? |
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A. |
7,125 |
B. |
3,300 |
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C. |
4,195 |
D. |
5,805 |
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Hint |
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10. |
The eighth grade class of 225 students is planning an ice cream social. If the director of the ice cream social knows that 7 out of 10 students prefer vanilla, how many students should be expected to eat vanilla ice cream? |
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A. |
about 158 |
B. |
about 113 |
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C. |
about 68 |
D. |
about 169 |
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11. |
Morgan can wear a black or a navy skirt with a white, a pink, or a yellow blouse. Which tree diagram represents the situation? |
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A. |
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B. |
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C. |
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D. |
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12. |
Marcus can buy a white or gray sweatshirt in size medium or large. Which tree diagram represents the situation? |
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A. |
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B. |
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C. |
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D. |
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13. |
Three hundred people were asked whether they liked certain types of music. The table gives the results of the survey. What is the experimental probability that a person likes jazz? |
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A. |
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B. |
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C. |
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D. |
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14. |
Four-hundred fifty teenagers were asked whether they purchased certain items in the last month. The table gives the results of the survey. What is the experimental probability that a teenager has bought a music CD in the last month? |
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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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