Question 754128: Nine cards numbered 1 to 9 are in a box. A card is drawn and replaced. Then, a second card is drawn. What is the probability that one is prime and the other is even?
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Nine cards numbered 1 to 9 are in a box. A card is drawn and replaced. Then, a second card is drawn. What is the probability that one is prime and the other is even?
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Primes: 2,3,5,7
Evens: 2,4,6,8
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P(one prime and one even) = (4/9)(4/9) = 16/81
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Cheers,
Stan H.
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