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A random variable X has the following probability density function fX(x)=ce^−|x|, −∞<x<∞. (a) Determine the constant...

A random variable X has the following probability density function fX(x)=ce^−|x|, −∞<x<∞.
(a) Determine the constant c.
(b) Determine the CDF FX(x).
Math   Statistics-And-Probability   
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Answer #1

The total integral must evaluate to 1 to be a valid PDF

We want the distribution function of X .

Therefore , the CDF of X is :
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