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16 February, 15:55

One ball is to be selected from a box containing red, white, blue, yellow, and green balls. If the probability that the selected ball will be red is 1/10, the probability that it will be white is 2/5, and the probability that it will be blue is 1/5, what is the probability that it will be yellow, or green

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  1. 16 February, 16:22
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    30% probability that it will be yellow, or green

    Step-by-step explanation:

    The urn has red, white, blue, yellow, and green balls.

    Each ball is chosen with the following probabilities:

    1/10 = 10% probability it is red

    2/5 = 40% probability it is white

    1/5 = 20% probability it is blue.

    p probability it is yellow or green

    What is the probability that it will be yellow, or green

    The sum of all probabilities is 100%. So

    10 + 40 + 20 + p = 100

    p = 30

    30% probability that it will be yellow, or green
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