Let S cx"y cx10y11 if 0

Extracted text: Let S cx"y cx10y11 if 0 < x="">< 1,="" 0="">< y="">< 1="" if="" 0="">< x="">< 1,="" 0=""><><1 f(x)="otherwise" find="" the="" following:="" (a)="" c="" such="" that="" f(x,y)="" is="" a="" probability="" density="" function:="" с="" —="" (b)="" expected="" values="" of="" x="" and="" y:="" e(x)="" e(y)="" (c)="" are="" x="" and="" y="" independent?="" (enter="" yes="" or="" no)="">