In a study with 200 mice, 50 are transfected with a green fluorescent protein (making them glow green). Each day you weigh 2 mice to check on their vital signs. You pull each mouse out at random, weigh it and set it to the side (not replacing it). Of the 2 mice you measure, what is the probability that 1 mouse is transfected with a green fluorescent protein and 1 mouse is not transfected? Hint: you could first select a transfected mouse, or you could first select a non-transfected mouse.