## mutally Exclusive problem: picking Q or A from deck

Sequences, counting (including probability), logic and truth tables, algorithms, number theory, set theory, etc.
teddybear101
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Joined: Tue Jan 12, 2010 5:54 pm
Location: Atlana, GA (cobb county)
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### mutally Exclusive problem: picking Q or A from deck

ok the question on my math homework sais...

Probability of picking a queen or an ace from a deck of cards.

ok, well i know that a desk of cards has 52 cards in it. a decl of cards has 4 queens and 4 aces. so wouldn't you do....

4/52 + 4/52, which would give you 8/52, which simplifies to 2/13?, or would you mult. it. i am so confused?

maggiemagnet
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Joined: Mon Dec 08, 2008 12:32 am
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### Re: mutally Exclusive problem

There are eight cards that are either queens or else aces. So adding is the right way.

teddybear101
Posts: 30
Joined: Tue Jan 12, 2010 5:54 pm
Location: Atlana, GA (cobb county)
Contact:

### Re: mutally Exclusive problem

thanks so much. you were a great help