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Q7Section I (Objective (Q1–Q80))7 of 80

Probability — conditional variance from a continuous joint pdf

The joint probability density function of XX and YY is given as

f(x,y)={2(x+2y)3,0<x<1,0<y<1 0,elsewheref(x,y)=\begin{cases}\dfrac{2(x+2y)}{3}, & 0<x<1, 0<y<1\ 0, & \text{elsewhere}\end{cases}

What is the value of conditional variance of XX given Y=0.5Y=0.5?

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