Practice question · Put in order
Order the steps for graphical analysis of experimental data.
- Extract physical parameters (slope, intercept) with uncertainties
- Perform the curve fit (least squares)
- Choose an appropriate model (linear, polynomial, etc.)
- Examine the residual plot for patterns
- Plot the raw data with error bars
Hints
- Plotting the raw data must come before any model is chosen.
- Checking the leftovers comes after the fit, not before.
Show the answer
- Plot the raw data with error bars
- Choose an appropriate model (linear, polynomial, etc.)
- Perform the curve fit (least squares)
- Examine the residual plot for patterns
- Extract physical parameters (slope, intercept) with uncertainties
Why
Start with visualization, fit a model, check residuals, then interpret parameters.
Practise Graphical Analysis and Curve Fitting
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