How many ways can you choose 2 items from a set of 5?

Practice Questions

Q1
How many ways can you choose 2 items from a set of 5?
  1. 5
  2. 10
  3. 20
  4. 15

Questions & Step-by-Step Solutions

How many ways can you choose 2 items from a set of 5?
  • Combinatorics – The study of counting, arrangements, and combinations of objects.
  • Binomial Coefficient – The formula C(n, k) = n! / (k!(n-k)!) used to determine the number of ways to choose k items from n items without regard to the order of selection.
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