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| 1 | |
In a probability experiment a successful result was obtained 24 times out of 30. The experimental probability of failure, expressed as a percentage, is: |
| | A) | 6% |
| | B) | 20% |
| | C) | 80% |
| | D) | 6 |
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| 2 | |
The spinner shown
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is spun 75 times. The experimental probability of success was 7/25. How many successes were recorded? |
| | A) | 0.28 |
| | B) | 7 |
| | C) | 21 |
| | D) | 54 |
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| 3 | |
You draw a card randomly from a standard deck of cards. What is the probability that you draw a heart? |
| | A) | 1/52 |
| | B) | 1/13 |
| | C) | 1/4 |
| | D) | 1/2 |
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| 4 | |
You roll 2 fair dice. What is the probability of rolling at least one 6? |
| | A) | 11/36 |
| | B) | 1/3 |
| | C) | 2/3 |
| | D) | 25/36 |
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| 5 | |
You roll a fair die 120 times. Which of the following is the most likely number of 1's which you will record? |
| | A) | 5 1’s |
| | B) | 10 1’s |
| | C) | 15 1’s |
| | D) | 20 1’s |
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| 6 | |
You want to simulate the flipping a fair coin 100 times by using a graphing calculator. Which of the following is the correct command to perform this simulation? |
| | A) | randint(1,2,100) |
| | B) | 100randint(1,2) |
| | C) | randint(1,2) |
| | D) | randint(100) |
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| 7 | |
After 12 games, the Toronto FC have won 8 games and lost 4. How many games would you expect them to win at the end of a 36-game season? |
| | A) | 12 games |
| | B) | 18 games |
| | C) | 24 games |
| | D) | 30 games |
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| 8 | |
If the probability of precipitation is 35% for each of the next two days, then the probability that it will rain neither of those two days is: |
| | A) | 12% |
| | B) | 42% |
| | C) | 65% |
| | D) | 88% |
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| 9 | |
All 1100 students at Sanjit’s school were asked what their plans were for the upcoming weekend. The results are displayed in the table shown:
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If a student was chosen at random, what is the probability that the student would be doing homework but not going to a movie? |
| | A) | 3/55 |
| | B) | 2/11 |
| | C) | 12/55 |
| | D) | 6/11 |
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| 10 | |
A golfer has a 2.8% chance of getting a hole in one. How many holes-in-one would you expect her to get over 72 holes of golf? |
| | A) | 1 |
| | B) | 2 |
| | C) | 3 |
| | D) | 4 |
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