Illustrating the Combination of Objects

1. Which of the following situations or activities illustrate combination?

• Choosing 5 questions to answer out of 10 questions in a test.

• Selecting 7 people to form a Student Affairs Committee.

• Fixing the schedule of a group of students who must take exactly 8 subjects.

• Forming a committee from the members of Math Club.

2. What do you call a selection of objects from a collection where the order of selection is not taken into consideration?

• sequence

• permutation

• integration

• combination

3. Selecting 3 dancers from 10 dancers who auditioned is an example of ____.

• combination

• differentiation

• integration

• permutation

4. In how many ways can a committee of 3 students be chosen from 15 students?

• 455

• 300

• 150

• 45

5. What is the value of 4! 3!?

• 144

• 100

• 12

• 7

6. C (n, 0) = _____.

• n

• r

• 1

• cannot be determined

7. in C (6, 4) = 15, which of the following denotes the number of objects?

• 15

• 6

• 4

• cannot be determined

8. Which of the factorial notation of C (9, 7)?

• 
• 
• 
• 

9. In C (9, 5) = 126, which of the following denotes the number of objects taken at a time?

• 126

• 9

• 5

• cannot be determined

10. In C(9, 5) = 126, which of the following denotes the number of possible selections?

• 126

• 9

• 5

• cannot be determined