The number of cars arriving at Patti Miles's Car Wash, in Orono, Maine, during the last 400 hours of operation is observed in the table to the right. a) Set up a probability distribution for the variable of car arrivals (round your responses to two decimal places). Number of Frequency Probability Cars Arriving 3 or fewer 0 4 40 5 60 6 100 7 140 8 60 9 or more 0 400