In 1950 an experiment was done observing the time gaps betweensuccessive cars on the Arroyo Seco Freeway. The data show that thedensity function of these time gaps was given approximatelyby p(x) =ae⁻⁰.¹²²ˣ where x is the time inseconds and a is a constant. a) Find a. b) Find P, the cumulative distribution function. c) Find the median and mean time gap.