A commuter must pass through 5 traffic lights on her way to work and will have to stop at each one that is red. She estimates the probability model for the number of red lights she hits, as shown below. X = # of red 0 1 2 3 4 5 P(X = X) 0.06 0.23 0.34 0.15 0.15 0.07 . . . (a) Compute the mean, or expected value, of the random variable X. H= (Round to one decimal place as needed.)