If the joint probability distribution of X and Y is given by f(x,y)=c(x^2+y^2) for x=-1,0,1,3 y=-1,2,3 find the value of c, find pr(X<=1,Y>2)

X<=1 gives values of x=-1, 0, and 1

Y>2 gives values of y=3

P(X<=1, Y>2)=C((-1)^2(0)^2(1)^2+(3)^2

P(X<=1, Y>2)=C(1*0*1+9)

P(X<=1, Y>2)=C(9)

Hence

C={P(X<=1, Y>2)}/9

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