An935803 An935803

15-12-2020
Mathematics

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Alex has a collection of cards: 4 are black, 2 are blue, 3 are white, and 1 is brown. What is the probability that he will pick a black card twice without replacement?

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chadhayden34 chadhayden34

15-12-2020

There is a 40% chance each black. Add all cards and get 10. Each card is 10%. If there are 4 black cars that means there is a 40% chance.

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