Let Yj denote the weight (in tones) of a bulk item stocked by a supplier at the beginning of a week and Y2 denote the amount of this item sold by the supplier during the week. Further the joint probability density function for Y, and Y2 is f (y1, Y2) : 0 < y2 < Y1 <1 o, Y1 otherwise Find Cou (Y, Υ).

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