hanvoldc6794 hanvoldc6794

10-04-2018
Mathematics

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A bag contains 20 purple marbles, 15 red marbles, and 5 blue marbles. what is the probability of randomly selecting a purple marble, not putting it back, and then randomly selecting a blue marble? (express your answer as a decimal rounded to two places.)

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sameenbasha1 sameenbasha1

10-04-2018

The probability of randomly selecting a purple marble first is a 1/2 chance or .50 in decimal form. If we take that marble out then randomly getting a blue marble would be 5/39 chance or 0.13 chance.

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