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Mathematics 28 Online
OpenStudy (anonymous):

If 2 cards are drawn without replacement from an ordinary 52 card deck, find the probability that the first card drawn is a king and that the second card is drawn a king. I think the answer is 3/51, am I right? thanks.

OpenStudy (kropot72):

Not quite. The probability that the first card is a king is 4/52. Having drawn a king first, the probability of drawing another king on the second draw is 3/51. Therefore the required probability is: \[\large P(2\ kings)=\frac{4\times3}{52\times51}=you\ can\ calculate\]

OpenStudy (anonymous):

no way that is correct, sorry

OpenStudy (kropot72):

The result of the calculation is 1/221 or alternatively 0.004525. That solution is definitely correct for the question exactly as you posted it.

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