geraldmorgan2672 geraldmorgan2672

20-01-2018
Mathematics

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The probability that the card is a spade given that the card is blackblack is

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cdw2014 cdw2014

20-01-2018

There are 52 cards in a deck and half of them are black. Of the 26 black cards, half of them are spades while the other half are clubs.

So the probability is 13/26 or 50%

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