leven purple marbles, seven orange marbles and two pink marbles are in a bag. What is the probability of selecting a purple marble, not repl

Question

leven purple marbles, seven orange marbles and two pink marbles are in a bag. What is the probability of selecting a purple marble, not replacing it, and then selecting an orange marble?

Question 4 options:

19%

20%

21%

22%

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Khải Quang 3 months 2021-08-02T15:14:48+00:00 2 Answers 3 views 0

Answers ( )

    0
    2021-08-02T15:15:51+00:00

    Answer:

    The probability of picking a purple marble, and then, not replacing picking an orange marble is approximately 20%

    Step-by-step explanation:

    First we know that there are 20 marbles in the bag, so the probability of picking a purple marble is 11/20. If we take a purple marble out, there will only be 19 marbles remaining in the bag. So the probability of picking an orange marble would be 7/19. Now, all we need to do is multiply the 2 fractions, and we will get 77/380 which equals to which is approximately 20% .

    0
    2021-08-02T15:16:00+00:00

    Answer
    The answer is 20%

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