## Appendix — per-trial pass/fail (secondary, noisy)

| Budget | Without PDF | With PDF |
|---:|:--|:--|
| 200 | 4/5 pass — mean 3.91 | 4/5 pass — mean 3.73 |
| 300 | 2/5 pass — mean 3.57 | 1/5 pass — mean 3.57 |
| 400 | 3/5 pass — mean 3.69 | 2/5 pass — mean 3.85 |

This scorer disagrees with the ranking on the sign of the PDF effect (it shows the PDF
never helping). Where they conflict, trust the ranking.