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3 Functions of two RV's. Consider two variables that pertain to a certain population: File Preview nects the number of hours an individual works; W reflects the individual's effective hourly wage.

(a) Do you think H and W are independent? Explain. (I am asking you to think about how the real world might work. You don't have to be right... but you should come up with something sensible.) (b) What is the average income for an individual in the population described above? Write this in terms of the joint pdf ƒ (h,w).

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