document.write( "Question 117457: A bag contains 10 blue, 6 red, and 4 green rubber balls. If you select a ball at random from the bag, what is the probability of not choosing a green ball?\r
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document.write( "A. 1/5
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document.write( "B. 4/5
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document.write( "C. 5/6
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document.write( "D. 9/10\r
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document.write( "Why can you eliminate choice D in this question? \n" );
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Algebra.Com's Answer #85458 by Edwin McCravy(20086) You can put this solution on YOUR website! \r\n" ); document.write( "A bag contains 10 blue, 6 red, and 4 green rubber balls. If you select a ball\r\n" ); document.write( "at random from the bag, what is the probability of not choosing a green ball? \r\n" ); document.write( "\r\n" ); document.write( "A. 1/5 \r\n" ); document.write( "B. 4/5\r\n" ); document.write( "C. 5/6\r\n" ); document.write( "D. 9/10 \r\n" ); document.write( "\r\n" ); document.write( "To not choose a green ball means to select a non-green ball. There are\r\n" ); document.write( "16 non-green balls out of the 20. So the probability is 16/20 which reduces\r\n" ); document.write( "to 4/5, so the correct answer is B.\r\n" ); document.write( "\r\n" ); document.write( "----------------------------------------------------------\r\n" ); document.write( "\r\n" ); document.write( "Why can you eliminate choice D in this question?\r\n" ); document.write( "\r\n" ); document.write( "Because that's what the answer would be if there had been 10 blue, 8 red,\r\n" ); document.write( "and 2 green rubber balls. \r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |