Desert Samaritan Hospital, located in Mesa, Arizona, keeps records of emergency room traffic. Those records reveal that the average number of patients who arrive between 6:00 PM and 7:00 PM is 6.9 patients per hour. Determine the probability (rounded to four decimal places) that, on a given day, the number of patients who arrive at the emergency room between 6:00 PM and 7:00 PM will be exactly four Answer at most two Answer between four and ten, inclusive