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arxiv: 1306.0290 · v1 · pith:B2WVLYFMnew · submitted 2013-06-03 · 🧮 math.ST · stat.TH

Probability density function of the Cartesian x-coordinate of the random point inside the hypersphere

classification 🧮 math.ST stat.TH
keywords cartesiandensitydistributionfunctionhypersphereinsiden-dimensionalpoint
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Consider randomly picked points inside the n-dimensional unit hypersphere centered at the origin of the Cartesian coordinate system. The Cartesian coordinates of the points are random variables, which form an n-dimensional vector for each point. Observing only the x-coordinate I obtained its probability density function (PDF). I show that it is related to the Gaussian distribution: in limit its companion PDF?? converges to the PDF of the standard normal distribution.

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