Please check the standard deviation calculator. Warning: include_once(analyticstracking.php): failed to open stream: No such file or directory in /home/sciencu9/public_html/wp-content/themes/2012kiddo/header.php on line 46 Warning: include_once(): Failed opening 'analyticstracking.php' for inclusion (include_path='.:/usr/lib/php:/usr/local/lib/php') in Normally people use absolute error, relative error, and percent error to represent such discrepancy: absolute error = |Vtrue - Vused| relative error = |(Vtrue - Vused)/Vtrue| If so, people use the standard deviation to represent the error. have a peek at these guys
Math CalculatorsScientificFractionPercentageTimeTriangleVolumeNumber SequenceMore Math CalculatorsFinancial | Weight Loss | Math | Pregnancy | Other about us | sitemap © 2008 - 2016 calculator.net Observed Value True Value RelatedPercentage Calculator | Scientific Calculator | Statistics Calculator In the real world, the data measured or used is normally different from the true value. In many situations, the true values are unknown. The error comes from the measurement inaccuracy or the approximation used instead of the real data, for example use 3.14 instead of π.