document.write( "Question 167640: select on card from a standard deck. What is the probability of selecting a four, seven or a heart? \n" ); document.write( "
Algebra.Com's Answer #123528 by gonzo(654) ![]() You can put this solution on YOUR website! there are 52 cards in a normal set (not including the joker) \n" ); document.write( "4 suits * 13 cards each suit = 52 \n" ); document.write( "each suit contains: \n" ); document.write( "number 2 through 10 + j + q + k + a \n" ); document.write( "----- \n" ); document.write( "there are 4 number 4's in a deck. \n" ); document.write( "there are 4 number 7's in a deck. \n" ); document.write( "there are 13 hearts in a deck. \n" ); document.write( "----- \n" ); document.write( "one of the 4's is a heart. \n" ); document.write( "one of the 7's is a heart. \n" ); document.write( "----- \n" ); document.write( "there are 11 hearts in a deck that are not also a 4 and are not also a 7. \n" ); document.write( "----- \n" ); document.write( "total number of cards you can pick that will get you what you want are \n" ); document.write( "4 + 4 + 11 \n" ); document.write( "----- \n" ); document.write( "probability of getting what you want is 11/52 \n" ); document.write( "----- \n" ); document.write( " \n" ); document.write( " |