18-03-2021
Mathematics

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a bag contains equal amounts of 10 different colored marbles. What is the chance of someone pulling out a blue marble putting it back. then picking out another blue marble

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18-03-2021

Answer: 1/20?

Step-by-step explanation: if they’re all different colors and it’s 10 then pulling out blue has a 1/10 chance so pulling it again would be 1/20

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