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Mathematics 9 Online
OpenStudy (anonymous):

I NEED HELP! Select a counter-example that makes the conclusion false. You select three marbles from a bag and each of them is black. Conclusion: All the marbles in the bag are black. Counterexample:

OpenStudy (anonymous):

there are 100 marbles in the bag, 99 are black and one is white

OpenStudy (anonymous):

theres are 4 marbles, 3 black and 1 white. you just happen to get lucky and get 3 black lol

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