A = {0, 1, -3, 6, -8, -10}
B = {-1, 2, -4, 7, 6, -9}
If a is a number that is randomly selected from Set A, and b is a number that is randomly selected from Set B, what is the probability that ab < 0?
Choose the correct option:
A) 1/4 B) 1/3 C) 5/13 D) 5/12 E) 1/2
For the product of 2 numbers to be negative either of them must be positive or negative:   P(positive, negative) = 2/6*3/6 = 6/36;   P(negative,positive ) = 3/6 * 3/6 = 9/36   P = 6/36 + 9/36   P = 15/36   P = 5/12   Answer: 5/12
<result>D</result>
A = {0, 1, -3, 6, -8, -10}
B = {-1, 2, -4, 7, 6, -9}
If a is a number that is randomly selected from Set A, and b is a number that is randomly selected from Set B, what is the probability that ab < 0?