document.write( "Question 646776: 7 cards are marked with a diferent number from 1-7, then placed face down on a table. One card is selected at random and not placed. A second card is then taken, at random . Determine the probabity that one card has an odd number on it. \r
\n" ); document.write( "\n" ); document.write( "This is the question I am unsure about. I found out that the probability for the first card that is picked up is 4/7 and for the second card the probability is 3/6 but I am not sure how to then use that info to get an answer to the writing above? Could you help? \n" ); document.write( "

Algebra.Com's Answer #405948 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "7 cards, 4 with odd numbers
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document.write( "draw 1 w/o replacement and draw another 
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document.write( "P(one odd) =   
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document.write( "OR 
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document.write( "4/7*3/6 + 3/7*4/6 = 12/42 + 12/42 = 24/42 = 4/7 \n" );
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