FA-12599 / Survey sampling estimators / Member archive
Marginal weights omit the first sampling stage · case 04
Marginal weights omit the first sampling stage.
Case contract
Rows are (value, primary probability, conditional secondary probability), both probabilities in (0,1]; return the total rounded to eight decimals.
Why this case matters
A deterministic survey-design model isolates this sampling contract before it is embedded in a larger estimation pipeline.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| two half stages | 8.0 | 16 | Failed |
MEMBER ARCHIVE
The complete case is available to members.
This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
Member access is invitation-based. Sign in with your invited account to inspect the sources.
Sign in to the archive ↗