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#1 2007-11-15 08:57:36

George74
Guest

Help with probability please?

Not really sure how to go about this one...

Suppose X is a uniform random variable on the interval (0, π/2).  Compute the density of Y=sinX.

#2 2007-11-15 09:41:41

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Help with probability please?

First compute the density of X. Since X is uniform, f(x) = constant for x ∈ (0,n⁄2) (and 0 elsewhere). And

Thus the density of Y = g(X) = sin(X) is (using the chain rule)

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