Specialists Unit 1

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Combinations

A combination of a group of objects is a selection of some or all of the objects irrespective of the order. We are interested in the number of combinations.

Combinations with restrictions

1)To include (or exclude) specific items

- This reduces the number of objects to select or to select from.

Questions for Combinations

7E Combinations (Web view) - Q2-3(a-c), 4, 7, 9, 13, 149, 13, 14, 15

7F Combinations with restrictions (Web view) - Q1, 4-6, 9, 12, 13, 159, 12, 13, 15

7G Pascal's triangle (Web view) - Q1, 3-5, 7, 8, 11

7I Inclusion-exclusion principle (Web view) - Q1, 2, 4, 6, 8, 11

7J Applications to probability (Web view)- Q3-5, 7, 8, 11-13, 16

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