<PRE><B>Question 616963</B>
A card is drawn from a deck of cards numbered 1-20. The card is NOT replaced and another card is drawn. Find the probability that a prime number is drawn and then a composite number. I am totally lost...Please help...thank you
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The primes are 2,3,5,7,11,13,17,19
Non-primes are 1,4,6,8,9,10,12,14,15,16,18,20
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P(select prime, then non-prime) = (8/20)(12/19) = (2/5)(12/19) = 24/95
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Cheers,
Stan H.
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