Exercise Sequence

The exercise path is now concrete and linked to solutions. Complete the three sets in order, allowing roughly 3–5 hours in total, plus time for repairs.

1. Set A: modeling and conditioning, five problems. Focus on observation protocols, count tables, and dependence of evidence.
2. Set B: distributions, five problems. Focus on replacement, stopping, density normalization, and moments.
3. Set C: expectation and inference, six problems. Focus on indicators, covariance, coverage, and the limits of aggregate data.
4. Code katas and the four guided labs. Derive before coding, then compare with exhaustive checks and reproducible simulation.
5. Independent assessment, followed by a changed-case recheck. Do not treat practice with an open answer key as independent assessment.

For every problem, write the experiment and assumptions, derivation, numerical result with units, and one limitation. Use the practice key after an attempt. If incorrect, retain the original, label the error, correct it, and solve a changed case. These records replace arbitrary notebook page counts as the completion evidence.

Optional extra exercises come from the reading guide, selected for a specific weak competency. Solving more familiar problems is not a substitute for repairing a misconception.

Continuous models and inference extension

Complete the required inference practice after the original sets, then use PS9–PS12 for independent transfer.