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
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