document.write( "Question 994434: A sample of 100 wood and 100 graphite tennis rackets are taken from the warehouse. If 9 wood
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document.write( "and 19 graphite are defective and one racket is randomly selected from the sample, find the probability that the racket is wood or defective. \n" );
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Algebra.Com's Answer #613519 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! Or means either one. \n" ); document.write( "Table \n" ); document.write( " Wood ;;;;;;;;;;; Graphite ;;; Total \n" ); document.write( "Defective;;;;;; 9 ;;;;;;;;;;; 19;;; ;;28\r \n" ); document.write( "\n" ); document.write( "non-D;;;;;; 91 ;;;;;;;;;;;;;;; 81;;;;;;;172\r \n" ); document.write( "\n" ); document.write( "Total---------100--------------100-------200\r \n" ); document.write( "\n" ); document.write( "Probability Wood is (100/200) \n" ); document.write( "Probability defective is (28/200) \n" ); document.write( "Probability BOTH is (9/200) \n" ); document.write( "The answer is the sum of the first two minus the third, since we have double counted. \n" ); document.write( "It is (100+28-9)/200=(119/200). It is the everything but graphite and non-defective. \n" ); document.write( " |