4. Which of the following situations illustrates combination? A. arranging books in a shelf B. drawing names from a box containing 200 names C. forming different numbers from 5 given digits D. forming plate numbers of vehicles 5. Which of the following situations does NOT illustrate combination? A. selecting fruits to make a salad B. assigning telephone numbers to homes C. choosing household chores to do after classes D. selecting posters to hang in the walls of your room For 6 - 15. Identify each situation whether it illustrates permutation or combination. Write your answer on the space before the number. _6. five people posing for pictures 7. choosing household chores to do after classes 8. determining the top three winners in a Science Quiz Bee 9. forming lines from six given points with no three of which are collinear 10. forming triangles from 7 given points with no three of which are collinear 11. assembling a jigsaw puzzle 12. choosing 5 of your classmates to attend your birthday party 13. picking of 5 balls from a basket of 15 balls 14. forming a committee of 6 members from 18 people 15. opening a combination lock 16. Calculate C( 20, 5) D. 1 860 480 A. 6 840 B. 15 504 C. 116 280 17. If C( n , 5 ) = 252, then n=. C. 9 D. 10 A. 7 B. 8 18. In a 10 item Mathematics problem-solving test, how many ways can you select 5 problems to solve ? C. 256 D. 258 A. 252 B. 254