A box contains 5 orange pencils, 8 yellow pencils, and 4 green pencils. Two pencils are selected, one at a time, with replacement.

Question

A box contains 5 orange pencils, 8 yellow pencils, and 4 green pencils.
Two pencils are selected, one at a time, with replacement.
Find the probability that the first pencil is green and the second pencil is yellow.
Express your answer as a decimal, rounded to the nearest hundredth.

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Thu Cúc 5 years 2021-07-23T18:59:55+00:00 1 Answers 42 views 0

Answers ( )

  1. ThanhThu
    0
    2021-07-23T19:00:57+00:00
    Reply

    Answer:

    total pencil = 5 orange pencils + 8 yellow pencils + 4 green pencils

    = 17 pencils

    P (g n y) = 4/17 + 8/17

    = 0.706

    Step-by-step explanation:

    1. first find the total number of pencils

    2. since there is a replacement the demoinator remains the same

    3. find the probability of each green and yellow

    4. add the two probability

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