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three red cards are numbered 1, 2, and 3. three black cards are numbered 4, 5, and 6. the cards are placed in a box and one card is selected at random. find the probability that a black card was selected given that the number on the card was an even number. write your answer in exact simplified form.

User LeDYoM
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5 votes

Answer:

8

Explanation:

1+2+3=6

4+5+6=15

15-6=9-1=8

User Eric Hartmann
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