Bag with 3 red marbles, 7 white marbles, and 5 blue marbles. You draw 3 marbles replacing one before drawing the next. What is the probabili

Question

Bag with 3 red marbles, 7 white marbles, and 5 blue marbles. You draw 3 marbles replacing one before drawing the next. What is the probability a red, blue and then white marble.

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Đan Thu 3 years 2021-09-05T14:15:22+00:00 1 Answers 6 views 0

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  1. MichaelMet
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    2021-09-05T14:17:20+00:00
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    Answer:

    7/225

    Step-by-step explanation:

    There are 15 marbles in the bag. The probability of drawing a red marble is 3/15 = 1/5.  If you replace that marble, then the probability of drawing a blue marble is 5/15 = 1/3 and if you replace that marble, then the probability of drawing a white marble is 7/15.  Therefore, the probability of drawing a red, blue and white marble with replacement is (1/5)(1/3)(7/15) = 7/225

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