Anonymous
Anonymous asked in 科學及數學數學 · 8 years ago

A point chosen at random

A point is chosen uniformly at random from the circumference of a circle of diameter 1. Let X be the length of the chord joining the random point to an arbitrary fixed point on the circumference. Find a) cdf of X b) E(X) c) Var(X).

Update:

How do you get the length of x?

Update 2:

And how do you get the range of x?

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