b***k
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GGSS (hoping) 于 (Fri Nov 14 08:53:43 2008) 提到:
Given a circle with radius 1, randomly (w.r.t area) choose a point inside
the circle. What is the expected distance from that point to the center? If
two points are randomly chosen, what is the expected distance between these
two points?
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sui (stone) 于 (Fri Nov 14 10:02:30 2008) 提到:
answer to first question is 2/3?
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