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correlation |
Also found in: Medical, Financial, Wikipedia, Hutchinson | 0.09 sec. |
correlationIn statistics, the degree of association between two random variables. The correlation between the graphs of two data sets is the degree to which they resemble each other. However, correlation is not the same as causation, and even a very close correlation may be no more than a coincidence. Mathematically, a correlation is expressed by a correlation coefficient that ranges from −1 (never occur together), through 0 (absolutely independent), to 1 (always occur together). In statistics, a measure of the strength of the relationship between two variables. It is used to predict the value of one variable given the value of the other. For example, a correlation might relate distance from urban location to gasoline consumption. Expressed on a scale from -1.0 to +1.0, the strongest correlations are at both extremes and provide the best predictions. See regression analysis. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Results indicate that perceived ease of use had a significant influence on perceived usefulness, with adjusted R-squared value at . 90 R-squared value for the log-fit plot is similar to that found at the -25[degrees]C lest temperature for elastic modulus ([R. |
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R-squared value
