document.write( "Question 369923: A computer prints out three digits chosen at random from 0 to 9, inclusive. Find the probability that:
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document.write( "a) All three digits are different.
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document.write( "b) The third digit differs from the first two digits.\r
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document.write( "Thank yoy very much for your answer! \n" );
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Algebra.Com's Answer #263604 by edjones(8007) You can put this solution on YOUR website! a) 10/10 * 9/10 * 8/10 = 720/1000 = 18/25 \n" ); document.write( ". \n" ); document.write( "b) \n" ); document.write( "((8/10 * 9) + 9/10)/10 Because of a 1/10 chance both of the first 2 digits are the same. \n" ); document.write( "= (72/10 + 9/10)/10 \n" ); document.write( "= 81/100 \n" ); document.write( ". \n" ); document.write( "Ed\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |