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12 April, 04:07

There are 4 red, 6 green, and 5 yellow pencils in a jar. Once a pencil is selected, it is not replaced. Find the probability. Give your answer as a fraction in simplest form, a decimal to the nearest hundredth, and the nearest whole percent. P (red and then yellow)

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  1. 12 April, 04:57
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    2/21 or 9.52%

    Step-by-step explanation:

    The first thing is to calculate the total number of pencils.

    4 + 6 + 5 = 15

    Which means that in total there are 15 pencils.

    Now the probability of drawing a red pencil is then:

    4/15

    Without that red pencil, then we have one less pencil in general, that is, 14, so the probability of drawing a yellow is:

    5/14

    The final probability would then be:

    4/15 * 5/14 = 20/210 = 2/21

    Now that equals 0.0952, which means that the probability is 9.52%
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