document.write( "Question 230580: how many sequences of four heads and three tails can be obtained from seven coin tosses?\r
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document.write( "thank you very much. \n" );
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Algebra.Com's Answer #170791 by stanbon(75887) ![]() You can put this solution on YOUR website! how many sequences of four heads and three tails can be obtained from seven coin tosses? \n" ); document.write( "--------------- \n" ); document.write( "Just determine the number of ways to place the 4 heads; the tails will \n" ); document.write( "take care of themselves the same number of ways. \n" ); document.write( "---------------- \n" ); document.write( "Ans: 7C4 = 7*6*5*4/1*2*3*4 = 7C3 = 7*6*5/1*2*3 = 35 \n" ); document.write( "======================================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |