document.write( "Question 731167: 1.a card is selected from a deck of 52 cards. what is the probability it is a queen?
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document.write( " 2. in his pocket, jose has 5 dimes, 7 nickels, and 4 pennies. he selects 4 coins, without replacement. what is the probability that he selects 2 dimes and 2 pennies in that order? \n" );
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Algebra.Com's Answer #447022 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 1.a card is selected from a deck of 52 cards. what is the probability it is a queen? \n" ); document.write( "P(queen) = 4/52 = 1/13 \n" ); document.write( "---------------------------\r \n" ); document.write( "\n" ); document.write( "2. in his pocket, jose has 5 dimes, 7 nickels, and 4 pennies. he selects 4 coins, without replacement. what is the probability that he selects 2 dimes and 2 pennies in that order? \n" ); document.write( "--- \n" ); document.write( "# of ways to pick 2 dimes: 5C2 = 10 \n" ); document.write( "# of ways to pick 2 pennies: 4C2 = 6 \n" ); document.write( "--- \n" ); document.write( "# of ways to select 2 dimes and 2 pennies: 10*6 \n" ); document.write( "# of ways to pick 4 coins in general: 20C4 = (20*19*18*17)/(1*2*3*4) = 4845 \n" ); document.write( "---- \n" ); document.write( "P(2 dimes and 2 pennies) = 60/4845 = 0.0124 \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=======================\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |