Two different integers are randomly chosen from the set $$\{ -5, -8, 7, 4, -2 \}.$$ What is the probability that their product is negative? Express your answer as a common fraction.
Possibilities
-5 -8 + -8 7 - 7 4 + 4 -2 -
-5 7 - -8 4 - 7 -2 -
-5 4 - -8 -2 +
-5 -2 +
P( negative product) = 6 / 10 = 3 / 5
