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| Question 1 | |
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| On a table, there are 18 english books, 25 math books, 22 science books, 21 history books, and 14 social study books. If a professor is selected at random, what is the probability that it is a history book? | |
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| A. | 0.22 | B. | 0.21 | |
| C. | 0.021 | D. | 0.12 | |
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| Question 2 | |
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| On a table, there are 18 english books, 25 math books, 22 science books, 21 history books, and 14 social study books. If a professor is selected at random, what is the probability that it is either a history book or a social study book? | |
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| A. | 0.21 | B. | 0.14 | |
| C. | 0.35 | D. | 0.25 | |
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| Question 3 | |
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| In a season five top players of a team scored following numbers of goals.
| Player | Number of goals | | James | 150 | | Tim | 128 | | Corian | 98 | | Phil | 101 |
If they keep the same performance, what is the experimental probability that the next goal will be scored by Phil? | |
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| A. | 101/477 | B. | 1/101 | |
| C. | 0.101 | D. | 1.01 | |
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| Question 4 | |
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| In a season five top players of a team scored following numbers of goals.
| Player | Number of goals | | James | 150 | | Tim | 128 | | Corian | 98 | | Phil | 101 |
If they keep the same performance, what is the experimental probability that the next goal will not be scored by Phil or Corian? | |
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| A. | 150/477 | B. | 278/477 | |
| C. | 199/477 | D. | 128/150 | |
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| Question 5 | |
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| In a restaurant, there are 5 managers, 15 servers, 10 cooks and 15 other personnel. If a person is selected at random, what is the probability that the person is either a manager or a cook? | |
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| A. | 1/5 | B. | 15/40 | |
| C. | 1/3 | D. | 1/15 | |
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| Question 6 | |
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| In a restaurant, there are 5 managers, 15 servers, 10 cooks and 15 other personnel. If a person is selected at random, what is the probability that the person is neither a manager nor a cook? | |
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| A. | 1/3 | B. | 1/15 | |
| C. | 3/2 | D. | 2/3 | |
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| Question 7 | |
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| Probability that event A will occur is 0.33. What is the probability that event A will not occur? | |
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| A. | 0.17 | B. | 0.33 | |
| C. | 0.67 | D. | 0.50 | |
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| Question 8 | |
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| Probability that event A will occur is 0.6. Probability that event B will occur is 0.80.
What is the probability that event A and event B both will occur? | |
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| A. | 0.6 | B. | 0.14 | |
| C. | 0.48 | D. | 0.86 | |
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| Question 9 | |
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| Probability that event A will occur is 0.6. Probability that event B will occur is 0.80. What is the probability that neither event A nor event B will occur? | |
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| A. | 0.08 | B. | 0.48 | |
| C. | 0.52 | D. | 0.62 | |
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| Question 10 | |
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| Probability that event A will occur is 0.6. Probability that event B will occur is 0.80. What is the probability that event A will occur but event B will not occur? | |
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| A. | 0.6 | B. | 0.2 | |
| C. | 0.12 | D. | 0.32 | |
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| Free Worksheets From myTestBook.com ------ © myTestBook.com, Inc. |
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