document.write( "Question 669715: In how many ways can a sample (without replacement) of 4 items be selected from a population of 6 items? \n" ); document.write( "
Algebra.Com's Answer #416542 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! C(n,r) = (n!)/(r!(n-r)!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (6!)/(4!*(6-4)!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (6!)/(4!*2!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (6*5*4!)/(4!*2!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (6*5)/(2!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (6*5)/(2*1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = (30)/(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(6,4) = 15\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So there are 15 ways. \n" ); document.write( " |