document.write( "Question 992281: Find both experimental error and the percent error.
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document.write( "QUESTION:
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document.write( "experimental value: 2.4 ; known value: 2.5 \n" );
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Algebra.Com's Answer #611935 by Theo(13342)![]() ![]() You can put this solution on YOUR website! here's a reference that discusses absolute error and relative error. \n" ); document.write( "http://www.regentsprep.org/regents/math/algebra/am3/LError.htm\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "not sure if you're dealing with absolute error. \n" ); document.write( "that is the absolute value of the error.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "it doesn't really tell you if you were below or above the desired measurement.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if that's a consideration, then you would need to indicate the direction of the error as well.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your experimental value is 2.4 and your known value is 2.5.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the absolute value of the difference is |2.4 - 2.5| = |-.1| = .1\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the relative difference is the absolute value of the difference divided by the known value.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this would be .1 / 2.5 = .04 * 100 = 4%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so you're talking an absolute difference of .1 and a relative difference of 4%.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "if the direction of the difference is important, then you would need to say that the absolute difference is .1 below the known value and the relative difference is 4% of the known value.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |