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  • 2017 December(A10) Math Question 1

    Equation of a Line

    - One Event

    1. A marble will be randomly selected from a bag of solid-colored marbles. The probability of selecting a red marble is 5/19. The probability of selecting a blue marble is 4/19. What is the probability of selecting a red marble or a blue marble?
    Choice B
    $$p=\frac{5}{19}+\frac{4}{19}=\frac{9}{19}$$

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