3. A parachutist lands at a random point on a line between markers A and B. (a) (By hand. ) Find the probability that she is closer to A than to B. (b) (By hand. ) Find the probability that her distance to A is more than three times her distance to B. Hint 1: The variable X = The distance from marker A that the parachuter lands has a Uniform distribution. Hint 2: First sketch the situation. You can set A = 0 and B = 1