Scoring Exactly
Problem
A fair coin is tossed repeatedly; heads scores point, tails scores points. Find the probability that the running total ever equals exactly .
Answer
Solution
| Difficulty | 7/10 |
|---|---|
| Topics | probability, Recursion, sequences |
Whiteboard
Your sketch is saved only in this browser. To share it, export your drawing as an image (whiteboard menu → Export as → PNG), then upload that image in the comments below.
Discussion
Ask questions, share alternate solutions, and use LaTeX freely.
Log in to join the discussion.
No comments yet.