Combinations - A committee of size seven is to be selected from a group of ten people. In how many ways can this be done?
Combinations - A teacher makes 2 tests that each have:
-5 multiple choice questions with 4 possible answers
-10 true/false questions (2 possible answers)
If a students takes both tests. How many possible comb ...
Combinations - Is it possible to evaluate C(9,12)? Explain.
Combinations - A student must answer 7 out of 10 questions in an examination. How many choices has she? How many if she must answer at least 3 out of the first 5 questions?