document.write( "Question 248000: A box contains 50 razor blades, five of these are known to be used, the remainder unused. What is the probability that 5 razor blades selected from the box will be unused. \n" ); document.write( "
Algebra.Com's Answer #180806 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A box contains 50 razor blades, five of these are known to be used, the remainder unused. What is the probability that 5 razor blades selected from the box will be unused. \n" ); document.write( "---------------- \n" ); document.write( "# of ways to get 5 unused: 45C5 \n" ); document.write( "# of ways to pick 5 from 50: 50C5 \n" ); document.write( "---------------------------------------- \n" ); document.write( "P(pick 5 unused) = 45C5/50C5 = 1221759/2118760 = 0.5766\r \n" ); document.write( "\n" ); document.write( "--- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |