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Power Regression Calculator

This calculator performs power regression and produces an equation for the line of best fit for the provided predictor and response values.

The equation takes the form: y = axb

To use the calculator, enter a list of comma-separated values for the predictor variable and response variable then click the Do Power Regression button.

y = axb

Correlation coefficient
r =

You can interpret the correlation coefficient r as follows:

  • 0.7<|r|≦1        strong correlation
  • 0.4<|r|<0.7     moderate correlation
  • 0.2<|r|<0.4     weak correlation
  • 0≦|r|<0.2         no correlation