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Mathematics 13 Online
OpenStudy (anonymous):

One card is drawn from a standard deck of cards. What is the probability that it is either a black card or a face card?

OpenStudy (dan815):

there are 13 * 2 black cards and 4 * 3 face cards and a total of 13*4 cards in a deck

OpenStudy (dan815):

but in 12 facecards, there are also 6 black cards

OpenStudy (dan815):

so what is the chance he will draw 26 black cards or the 6 other face cards that are not black

OpenStudy (dan815):

26+6/13*4 =32/52

OpenStudy (dan815):

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OpenStudy (anonymous):

which reduces to 8/13. thanks a ton!!

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