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10.4 Exercise 14

Avg difficulty 2.5

fXY(t,u)=12179(3t2+u)f_{X Y} \left(t , u\right) = \frac{12}{179} \left(3 t^{2} + u\right), for 0≤t≤20 \leq t \leq 2, 0≤u≤min{2,3-t}0 \leq u \leq \min \left\{2 , 3 - t\right\} (see Exercise 19 from "Problems on Random Vectors and Joint Distributions").

Z = I M ( X , Y ) ( X + Y ) + I M c ( X , Y ) 2 Y 2 , M = { ( t , u ) : t ≤ 1 , u ≥ 1 } Z = I_{M} \left(X , Y\right) \left(X + Y\right) + I_{M^{c}} \left(X , Y\right) 2 Y^{2} , M = \left\{\left(t , u\right) : t \leq 1 , u \geq 1\right\}

Determine P(Z≤2)P \left(Z \leq 2\right).

Pfeiffer, Applied Probability, 10.4 Problems on Functions of Random Variables, exercise 14

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Adapted from Applied Probability © 2009 Paul E. Pfeiffer. Licensed under CC BY 3.0. Source: Applied Probability. Imported at revision d7a0420.