In how many ways can a committee of be chosen from people?

Answer and explanation

Correct answer: B. 120

  1. Step 1: Apply the combination formula because the committee members are unordered.
  2. Step 2: Express the combination: .
  3. Step 3: Calculating the result gives distinct committees.
Answer
120.
Why not the others: 30 simply multiplies total people by committee size (); 720 calculates permutations , erroneously treating selection order as distinct; 45 is an underestimation counting miscalculation.

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