Multiple choice

A bag has 5 red, 4 blue, and 3 green balls. What is the probability of picking 2 red balls?

  1. 5/33

  2. 10/33

  3. 5/66

  4. 1/6

  5. 2/11
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A Correct answer
Explanation

Total balls = 12. Probability of picking 2 red balls = (5/12) * (4/11) = 20/132 = 5/33.

AI explanation

Using the classical definition of probability, the total number of ways to pick 2 balls from 12 is 12C2, which equals 66. The number of favorable ways to pick 2 red balls from 5 is 5C2, which equals 10. Therefore, the probability of picking 2 red balls is 10/66, which simplifies to 5/33.

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