How far apart can you expect two points chosen at random in the unit square to be? I found this problem on the YouTube channel maintained by Presh Talwalkar, Mind Your Decisions. He correctly calls it a very hard puzzle. At first, I guessed the answer might be $1/2$. But the correct answer is more interesting than that.... read more >>

# How Far Apart Are Two Random Points in a Square? 5

Posted by **Cleve Moler**,

**Category:**- Calculus,
- Fun,
- Random Numbers,
- Symbolic

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