The average accident on a certain road section is at 2.4 per day, what is the probability that there will be 12 accidents in a week? A bus company operates both a walkin and online booking to accommodate their passengers. On a random day, let X and Y be the events that both walkin and online bookings are in use, respectively, and suppose that theirjoint density function is given by the equation before. What is the marginal PDF ofX and Y?l 2 f(x,y)= (x+2y), 032615153131 0' elsewhere