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Amplitude Modulation

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Question 1 of 5

$P_x(x)=a \exp (-2|x|)+b \exp (-3|x|)$ is the probability density function for the real random variable X , over the entire x -axis. a and b are both positive real numbers. The equation relating a and b is

$2 a+\frac{1}{3} b=1$

$true$

$a+\frac{2}{3} b=1$

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Amplitude Modulation

Quick practice

Question 1 of 5

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