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There are 9 red and 6 green marbles in a bag. A child reaches in the bag and randomly takes one marble. What is the probability of that child getting a green marble?

  1. 0.66

  2. 0.4

  3. 0.33

  4. 0.5

The correct answer is: 0.66

There are a total of 15 marbles in the bag, 9 of which are red and 6 are green. This means that the probability of getting a red marble is 9/15 or 0.6. However, the question asks for the probability of getting a green marble, which would be 6/15 or 0.4. Option A (0.66) and Option C (0.33) are incorrect because they do not accurately represent the number of green marbles in the bag (6 out of 15). Option B (0.4) is incorrect because it incorrectly represents the probability of getting a red marble, not a green marble. Therefore, the correct answer is A (0.4), which accurately represents the probability of getting a green marble out of 15 marbles.