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Mathematics 13 Online
OpenStudy (anonymous):

Probability is my Problem

OpenStudy (anonymous):

OpenStudy (anonymous):

how many cards are black?

OpenStudy (anonymous):

1

OpenStudy (anonymous):

actually instead of doing this the math teacher way, lets just think there are two black suits hold the phone... 1??

OpenStudy (anonymous):

ever seen a deck of cards?

OpenStudy (anonymous):

Yes in a way

OpenStudy (anonymous):

do you know what the suits are ?

OpenStudy (astrophysics):

|dw:1440423007754:dw| this one is probably better

OpenStudy (anonymous):

what you need to know is that there are two black suits \(\spadesuit\) and \(\clubsuit\)

OpenStudy (anonymous):

one of of the two are \(\clubsuit\)'s

OpenStudy (anonymous):

So how do you know that like how do you know how many black cards there are

OpenStudy (anonymous):

And by my understanding the answer is C

OpenStudy (anonymous):

yes, half of the black cards are clubs, the other half spades

OpenStudy (anonymous):

Thank you for explaining

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