Combinations (Leaving Cert Mathematics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What key feature distinguishes combinations from other selection methods?
What key feature distinguishes combinations from other selection methods?
Order of selection does not matter
What is the formula for combinations?
What is the formula for combinations?
In the combination formula, what does represent?
In the combination formula, what does represent?
Total number of items
In the formula , what does represent?
In the formula , what does represent?
Number of items to select
What does the factorial symbol represent?
What does the factorial symbol represent?
Product of all positive integers up to n
What is the value of ?
What is the value of ?
How do combinations differ from permutations?
How do combinations differ from permutations?
Order matters in permutations only
A club has members. How many ways can they choose a -member committee?
A club has members. How many ways can they choose a -member committee?
ways
How many ways can a teacher select students from for a project?
How many ways can a teacher select students from for a project?
ways
When should you use combinations rather than permutations?
When should you use combinations rather than permutations?
When order is irrelevant