🏠
Guest Not signed in
‹ Expected Value & Martingales
Expected Value & Martingales

Reflection principle: count bad paths by mirroring them

untried
Answer a few questions to get started.
Builds on: Random walk Symmetry
The loop
1
Learn · Tutorial
Step-through, one idea per page.
→ 2
Practise · 9 questions
A timed sprint over questions tagged with this concept.
→ 3
Review
Your missed questions, re-surfaced on the spaced-repetition schedule.
→