A commuter must pass through 5 traffic lights on her way to work, and she will have to stop at each one that is red. Let X - the number of red lights she stops at on her way to work. She estimates the distribution for X to be as shown below. Value of X 1 2 3 4 5 Probability0.40.25 0.150.05 a) Find the probability that the commuter stops at 3 red lights on her way to work. b) Find P(2