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    Question

    A bag contains 5 green, 7 yellow, 3 red, and 6 blue

    marbles. If a single marble is chosen at random from the bag, what is the probability that it is yellow or blue?
    A 11/21 Correct Answer Incorrect Answer
    B 13/21 Correct Answer Incorrect Answer
    C 8/21 Correct Answer Incorrect Answer
    D 12/21 Correct Answer Incorrect Answer

    Solution

    Total number of marbles= 5+7+3+6=21 ┬а Number of favorable outcomes (yellow or blue marbles) = 7 (yellow) + 6 (blue) = 13 ┬а Probability= P (yellow or blue) = 13 /21

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