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There are 7 blue balls and 15 red balls in a urn. 3 balls are randomly chosen at once (without replacement). what is the probability that 2 blue and 1 red ball are drawn

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3 votes
i dont know which one is true
There are 7 blue balls and 15 red balls in a urn. 3 balls are randomly chosen at once-example-1
There are 7 blue balls and 15 red balls in a urn. 3 balls are randomly chosen at once-example-2
User Vahid Msm
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