assume that you randomly select 4 cards from a deck of 52. what is the probability that all the cards selected are spades?
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OpenStudy (anonymous):
13
OpenStudy (anonymous):
wait
OpenStudy (anonymous):
wait, do you replace teh cards each times?
OpenStudy (anonymous):
its is not 13
OpenStudy (anonymous):
13 is not a probability
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OpenStudy (anonymous):
9/13
OpenStudy (anonymous):
you need to know if you replace the cards: Independent or don't replace: dependent
OpenStudy (anonymous):
it doesnt say you do so i assume you dont
OpenStudy (anonymous):
its 9/13 try that
OpenStudy (anonymous):
that is wrong i tried it
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OpenStudy (anonymous):
then you didn't write the question correctly?
OpenStudy (anonymous):
Assume that you randomly select 4 cards from a deck of 52.
What is the probability that all of the cards selected are spades?
OpenStudy (anonymous):
I don't see how 9/13 is wrong but oh well
OpenStudy (anonymous):
in cards of total 52 there are 13 hearts 13 diamonds 13 clubs and 13 spades...
the probability of picking up a spade is.... sum of spades/total cards= 13/52= 1/4
OpenStudy (anonymous):
Yes 1 spade but he said 4
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OpenStudy (anonymous):
u take 4 spades then its 13C4/52C4
OpenStudy (anonymous):
that did not work either
OpenStudy (anonymous):
Okay can you write the whole question, because it changes the way you work it
OpenStudy (anonymous):
Assume that you randomly select 4 cards from a deck of 52.
What is the probability that all of the cards selected are spades?
thats the whole question