Mission: statistical sanity check (step 7/7) · ml math and statistics that actually show up

Checkpoint

One last thing before we move on. pass this to mark the lesson done, or skip and keep moving.

Build sanity_report(data): line 1 is n, positive rate, and majority baseline (:.1%); line 2 is the amount column's mean, median, min, max (:.1f). Run it on the clean 8-row dataset, then append one corrupted row — {"amount": 4800.0, "label": 0}, a cents-for-dollars record — and run it again under a '--- corrupted ---' header. The max line should make the corruption impossible to miss.

Checkpoint

One last thing before we move on. pass this to mark the lesson done, or skip and keep moving.

Build sanity_report(data): line 1 is n, positive rate, and majority baseline (:.1%); line 2 is the amount column's mean, median, min, max (:.1f). Run it on the clean 8-row dataset, then append one corrupted row — {"amount": 4800.0, "label": 0}, a cents-for-dollars record — and run it again under a '--- corrupted ---' header. The max line should make the corruption impossible to miss.

full-screen editor opens — close anytime to keep reading.

Mission: statistical sanity check — step 7 of 7