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1. A sample space consists of 18 separate events that are equally likely. What is the probability of each? A) 0 C) 1 B) 1 D) 18 18
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2. On a multiple-choice test, each question has 5 possible answers. What is the probability that a random guess on the first question will be correct? A) 0 C) 1 B) 1 D) 5 5
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3. Based on the probability table below, determine P(not B). A) 0.40B) 0.60 OutcomesABCD Probability0.350.400.200.05
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4. An experiment consists of drawing random numbered disks from a bag and then replacing them. Fifty disks have been drawn and the results are shown on the table below. Estimate the experimental probability that the next draw will be a 3. A) 0.12B) 0.24 Symbol1234 Draws10151213
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5. Walt spun a spinner 100 times. The results are shown in the table. What is the experimental probability of spinning a red on the next spin? A) 1/20C) 1/5 B) 1/10D) 4/5 OutcomeRedBlueYellowGreen # of Spins 20283121
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6. What is the probability that a multiple of 1 will occur with one roll of a fair number cube? A) ½B) 1
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7. Kelly has 200 red and green beads in a bag. If there are 70 red beads, what is the probability of randomly selecting a red bead? A) 35% B) 70%
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8. A bag contains 5 green candles, 2 yellow candles, and 3 red candles. What is the probability of picking a red candle and then a green candle from the bag without replacement? A) 3/20B) 1/6
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9. If you flip a coin and get 3 heads in a row, what is the probability of getting heads on the next flip? A) 0C) ½ B) ¼D) 1
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10. Margaret has a bag containing 5 red chips and 5 blue chips. What is the probability of drawing two red chips in two draws without replacement? A) 2/9B) 1/2
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11. James decides to make a cheese sandwich. He finds 2 types of bread and 3 kinds of cheese. How many different sandwich choices does he have with one kind of cheese on one kind of bread? A) 2C) 6 B) 3D) 9
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12. Sarah wants to adopt 2 of the 4 kittens at the pet shelter. How many different combinations of kittens does she have to choose from? A) 2C) 12 B) 6D) 24
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13. A bag contains four red marbles, three blue marbles, and five green marbles. What is the probability that a randomly selected marble is not blue? A) 1/6C) 3/4 B) 1/4D) 5/6
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14. By mistake, someone has mixed up some nuts, bolts and screws. You know there are a total of 400 objects in the bin. If there are 170 bolts and 200 screws, what is the probability of randomly selecting a nut? A) 0.075C) 7.5 B) 0.75D) 75
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15. A bag contains 5 green marbles, 3 yellow marbles, and 2 red marbles. What is the probability of picking three red marbles from the bag without replacement? A) 0C) 1/12 B) 1D) 1/8
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16. A sample space consists of 18 separate events that are equally likely. What is the probability of each? A) 0C) 1 B) 1D) 18 18
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17. On a multiple-choice test, each question has 5 possible answers. What is the probability that a random guess on the first question will be correct? A) 0 C) 1 B) 1D) 5 5
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18. Based on the probability table below, determine P(not B). A) 0.40B) 0.60
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19. A basketball player makes 70% of her free throws. Use the random numbers above to estimate the chance of at least 5 baskets in 6 times at times at the free throw line. Use 6 trials. A) 33% B) 50%
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20. A bag contains 50 red and 50 blue beads. What is the probability of drawing two red beads with replacement?. A) 25% C) 75% B) 50% D) 100%
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21. What is the probability that a multiple of 1 will occur with one roll of a fair number cube? A) 1 C) 1 2 B) 1D) 0 6
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22. Kelly has 200 red and green beads in a bag. If there are 70 red beads, what is the probability of randomly selecting a red bead? A) 35% B) 70%
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23. A bag contains 5 green candles, 2 yellow candles, and 3 red candles. What is the probability of picking a red candle and then a green candle from the bag without replacement? A) 3B) 1 20 6
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24. James decides to make a cheese sandwich. He finds 2 types of bread and 3 kinds of cheese. How many different sandwich choices does he have with one kind of cheese on one kind of bread? A) 2 C) 6 B) 3 D) 9
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