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Mathematics 16 Online
OpenStudy (anonymous):

You have a standard deck of 52 cards. You draw one card from the deck, put it back, and then draw one more. What is the probability that you draw a black card on the first draw and a queen on the second draw?

OpenStudy (anonymous):

50% for the first try, then 52/4 for next chance :)

OpenStudy (anonymous):

P(a black card on the first draw and a queen on the second draw) = P(a black card on the first draw) * P( a queen on the second draw)

OpenStudy (anonymous):

oh if you mean alltogether probability then @telltoamit is right

OpenStudy (anonymous):

@telltoamit i dont know what to put as the value for the 1st or 2nd draw

OpenStudy (anonymous):

P(a black card on the first draw) = number of black cards/total number of cards

OpenStudy (anonymous):

@telltoamit I got 1/ 26 but i dont think thats right

OpenStudy (anonymous):

how did u get that..

OpenStudy (anonymous):

i did 2/52

OpenStudy (anonymous):

number of black cards = 26 half are black, half are red

OpenStudy (anonymous):

is it 1/2

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