Probability to find a great circle touching at least K points on a sphere, given N randomly drawn points












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N points are randomly drawn with a pen on a sphere. The thickness of the pen is of that size that for a great circle drawn on the sphere the probability that a randomly drawn point touches it is p. What is the probability to be able to draw a great circle on the sphere which touches at least K points?



I need this probability estimation (with N=100, K=10, p=1/100) for a historic discussion about whether it is a coincidence that on the great circle through Giza and Easter Island (thickness 1 degree) there are more than 10 important prehistoric monuments.










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  • $begingroup$
    I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
    $endgroup$
    – Bernd Borchert
    Jan 3 at 13:56


















2












$begingroup$


N points are randomly drawn with a pen on a sphere. The thickness of the pen is of that size that for a great circle drawn on the sphere the probability that a randomly drawn point touches it is p. What is the probability to be able to draw a great circle on the sphere which touches at least K points?



I need this probability estimation (with N=100, K=10, p=1/100) for a historic discussion about whether it is a coincidence that on the great circle through Giza and Easter Island (thickness 1 degree) there are more than 10 important prehistoric monuments.










share|cite|improve this question









$endgroup$












  • $begingroup$
    I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
    $endgroup$
    – Bernd Borchert
    Jan 3 at 13:56
















2












2








2





$begingroup$


N points are randomly drawn with a pen on a sphere. The thickness of the pen is of that size that for a great circle drawn on the sphere the probability that a randomly drawn point touches it is p. What is the probability to be able to draw a great circle on the sphere which touches at least K points?



I need this probability estimation (with N=100, K=10, p=1/100) for a historic discussion about whether it is a coincidence that on the great circle through Giza and Easter Island (thickness 1 degree) there are more than 10 important prehistoric monuments.










share|cite|improve this question









$endgroup$




N points are randomly drawn with a pen on a sphere. The thickness of the pen is of that size that for a great circle drawn on the sphere the probability that a randomly drawn point touches it is p. What is the probability to be able to draw a great circle on the sphere which touches at least K points?



I need this probability estimation (with N=100, K=10, p=1/100) for a historic discussion about whether it is a coincidence that on the great circle through Giza and Easter Island (thickness 1 degree) there are more than 10 important prehistoric monuments.







probability






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share|cite|improve this question











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asked Jan 3 at 8:53









Bernd BorchertBernd Borchert

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112












  • $begingroup$
    I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
    $endgroup$
    – Bernd Borchert
    Jan 3 at 13:56




















  • $begingroup$
    I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
    $endgroup$
    – Bernd Borchert
    Jan 3 at 13:56


















$begingroup$
I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
$endgroup$
– Bernd Borchert
Jan 3 at 13:56






$begingroup$
I think a solution does not involve any geometry. The question sounds like geometry but it is pure probability/combinatorics.
$endgroup$
– Bernd Borchert
Jan 3 at 13:56












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