A random variable X is defined by the double exponential distribution ρx(X) = ae-b|x| - ∞ < x < ∞
Where a and b are +ve constants. What is the relation between a and b so that ρx(X) is a probability density function?
A. $${\text{a}} = \frac{{\text{b}}}{2}$$
B. $${\text{b}} = \frac{{\text{a}}}{2}$$
C. $${\text{a}} = {\text{b}}$$
D. $${\text{a}} = \frac{1}{{\text{b}}}$$
Answer: Option A
This Question Belongs to Electronics And Communications Engineering >> Signal Processing
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