1.

Let A = {1, 3, 5, 7, 9} and B = {2, 4, 6, 8}. An element (a, b) of their Cartesian product A×B is chosen at random. The probability that a + b = 9, is

Answer»

Let A = {1, 3, 5, 7, 9} and B = {2, 4, 6, 8}. An element (a, b) of their Cartesian product A×B is chosen at random. The probability that a + b = 9, is



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