x is chosen at random between -1 and -4, and y is chosen at random between -4 and 2. What is the probability that the product xy is positive.
These are the products of the 10 numbers chosen:
(-8, -6, -4, -4, -3, -2, -2, -1, 1, 2, 2, 3, 3, 4, 4, 4, 6, 6, 8, 8, 9, 12, 12, 16) Total =>> 24
If you count the positive products, you get 16
So, the probability is: 16 / 24 = 2 / 3