Question: Show that the following function satisfies the properties of a joint probability mass function. fr(x. y) 1/8 1/4 -2 -1 -0.5 1/2 0.5 1/8

Show that the following function satisfies the properties of a joint probability mass function.


fr(x. y) 1/8 1/4 -2 -1 -0.5 1/2 0.5 1/8

fr(x. y) 1/8 1/4 -2 -1 -0.5 1/2 0.5 1/8

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