Hands-on learning

Interactive labs

The same examples are embedded in the relevant chapters. Try a change, inspect the result, and explain what the example cannot establish.

See the difference between a mean, a median, and a nearest-rank percentile.

Change the scenario and baseline. Each line follows one workload across policies.

B succeeds more often on both easy and hard tasks. Can you make its overall result look worse?

Edit the confusion matrix and watch three apparently similar accuracy statements separate.

Rotate a direction or keep fewer principal components. Which information survives?

Change the segmentation threshold and pixel calibration. Inspect the largest connected object.

Move point C across the shared border and choose what it means to be inside.

Change a discount rate or return scale. Arithmetic averages do not describe compounded wealth.

Choose a worker budget and coordination cost. Inspect the best integer choice inside that budget.