Laplace random variables-cumulative distribution function

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Reference no: EM1399356

A r.v. X is called a Laplace r.v. if its pdf is given by

fx(x) = ke ^(-lambda |x|) lambda>0, -infidenity< x < infidenty

where k is a constant.

(a) Find the value of k.

(b) Find the cdf of X.

Reference no: EM1399356

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