Let f(x) = c/(1 + x 2 ). (a) For what value of c is f a

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Let f(x) = c/(1 + x2). 

(a) For what value of c is f a probability density function? 

(b) For that value of c, find P(–1 < X < 1).

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Calculus

ISBN: 9780495011606

6th Edition

Authors: James Stewart

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