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Mathematics 7 Online
OpenStudy (anonymous):

What is thre probability of selecting a 5 or a diamond from a standard deck of playing cards

OpenStudy (asnaseer):

first - how many 5's are there is a deck?

OpenStudy (anonymous):

4

OpenStudy (asnaseer):

correct. next - how many diamonds are there in a deck?

OpenStudy (anonymous):

13

OpenStudy (asnaseer):

correct again. finally - how many cards are there in a deck?

OpenStudy (anonymous):

52

OpenStudy (asnaseer):

good. now what you need to remember is that out of the 13 diamonds in the deck, one of them is also a 5. so that means you have 13 diamonds plus 3 other 5's that you can pick - making a total of 16 cards.

OpenStudy (asnaseer):

so the probability becomes: 16/52

OpenStudy (asnaseer):

which you should be able to simplify

OpenStudy (asnaseer):

make sense?

OpenStudy (anonymous):

Yes it does. I have another question

OpenStudy (asnaseer):

please post it as a new question

OpenStudy (anonymous):

Ok

OpenStudy (asnaseer):

you will first need to close this question as you are only allowed to have one open question at any given time.

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