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| Question 1 |
| Select the correct statement about combination. |
| A. | You can make multiple combinations of larger number (i.e. 5) of balls from a group of smaller number (i.e. 3) of balls. | B. | You can make multiple combinations of smaller number (i.e. 3) of balls from a group of larger number (i.e. 5) of balls. |
| C. | You can make 2 combinations using one ball. | D. | You can make only one combination using two ball. |
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| Question 2 |
| Which of the following is not a common notation used to represent combination? |
| A. | C(n,r) | B. | nCr |
| C. | nrC | D. | nCr |
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| Question 3 |
| Which of the following expression is used to calculate combination with no repetition? |
| A. |  | B. |  |
| C. |  | D. |  |
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| Question 4 |
| How is permutation different from combination? |
| A. | If order of selected objects in a combination matters then it is a permutation. | B. | If order of selected objects in a combination does not matters then it is a permutation. |
| C. | Order of selected objects in a combination is reverse of the order of selected objects is a permutation. | D. | Permutation is a superset of combination. |
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| Question 5 |
| Which of the following is not a common notation used to represent permutation? |
| A. | P(n,r) | B. | nPr |
| C. | nPr | D. | nrP |
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| Question 6 |
| Which of the following expression is used to calculate permutation with no repetition? |
| A. |  | B. |  |
| C. |  | D. |  |
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| Question 7 |
| There are three balls; red, green and yellow. Which of the following represents all possible combinations of two balls? |
| A. | red, green
green, yellow | B. | red, green
red, yellow
green, yellow |
| C. | red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green | D. | red, green
green, red
red, yellow
yellow, red |
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| Question 8 |
| There are three balls; red, green and yellow. Which of the following represents all possible pernumations of two balls? |
| A. | red, green
green, yellow | B. | red, green
red, yellow
green, yellow |
| C. | red, green
green, red
red, yellow
yellow, red
green, yellow
yellow, green | D. | red, green
green, red
red, yellow
yellow, red |
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| Question 9 |
| There are four balls; red, green, blue and yellow. If two balls are picked, what is the possible number of combinations? |
| A. | 12 | B. | 6 |
| C. | 8 | D. | 24 |
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| Question 10 |
| There are four balls; red, green, blue and yellow. If two balls are picked, what is the possible number of permutations? |
| A. | 12 | B. | 6 |
| C. | 8 | D. | 24 |
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| Free Worksheets From myTestBook.com ------ © myTestBook.com, Inc. |
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