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Regression and Correlation

# Regression and Correlation - Regression and Correlation of...

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Regression and Correlation of Data - Apply the least squares method for fitting data with linear regression - Methods of regression are used to summarize sets of data in useful form. The values of the data have already been recorded, and as such, are fixed.

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Regression analysis: a collective name for techniques for the modeling and analysis of numerical data in order to find out the relation between the dependent e.g. y and independent variable(s) e.g. x. Assumption: - There is no error in the independent variable(s). - All errors due to measurement and to approximations in the modeling equations appear in the dependent variable, y. Regression and Correlation of Data
Examples common to engineers: – The output of a CSTR changes as the temperature changes within the reactor, and the measurement of output concentration causes additional variation due to measurement errors. – The power produced by an electric motor varies with changing input voltage, and any measurement of output voltage includes measuring errors.

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Regression and Correlation - Regression and Correlation of...

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