3 Questions
Which of the following is an example of a combination?
Choosing 3 books from a shelf of 10 books
Which of the following formulas is used to calculate the number of combinations?
nCr = n! / (r! * (n - r)!)
Which of the following is an example of a permutation?
Arranging 3 books in a row from a shelf of 10 books
Study Notes
Combinations and Permutations
- A combination is a selection of objects, regardless of the order in which they are chosen.
- The formula to calculate the number of combinations is: C(n, k) = n! / (k!(n-k)!)
- A permutation is an arrangement of objects in a specific order, with the order of the objects mattering.
Test your knowledge of permutations and combinations with this quiz! Identify examples of combinations and permutations, and determine which formula is used to calculate the number of combinations. Perfect for class 11 students studying state board curriculum.
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