the number of vehicle passing through an intersection during each 15-minute period was recorded. the results are shown below. construct a frequency distribution (and a relative frequency distribution) for the vehicles passing through the intersection in a 15-minute period. use 5 classes beginning with a lower class limit of 10 vehicles and use a class width of 5 vehicles. 23 25 23 26 26 23 28 25 33 29 29 27 22 29 23 18 13 25 25 25 14 22 17 28 15 17 28 22 18 31 11 27