perplexus.info :: Probability : Don't Be a Square

Don't Be a Square (Posted on 2003-05-19)

Given n points drawn randomly on the circumference of a circle, what is the probability they will all be within any common semicircle?

See The Solution Submitted by DJ

Rating: 4.4667 (15 votes)

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re(2): Numerical Answers

| Comment 3 of 21 |

(In reply to re: Numerical Answers by Charlie)

I am confused by the problem... (and didn't read Charlie's solution), does it mean "What is the probability that none of the n points will reside on half of the circumference?" (thinking that semicircle is exactly half a circle)

Posted by Gamer on 2003-05-19 10:11:34

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