**Both of integrals f(x,y) dx dy =1 **

Both of integrals f(x,y) dx dy >1

Both of integrals f(x,y) dx dy <1

Both of integrals f(x,y) dx dy =0

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# The joint density function f(x,y) will be a pdf if (STA301)

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**Both of integrals f(x,y) dx dy =1 **

Both of integrals f(x,y) dx dy >1

Both of integrals f(x,y) dx dy <1

Both of integrals f(x,y) dx dy =0