Exercise 3. (20pts) The manager of a Wendy's fast-food restaurant wants to know the typical number of customers who arrive during the lunch hour. The data in Table 8 represent the number of customers who arrive at Wendys for 40 randomly selected 15-minute intervals of time during lunch. For er- ample, during one 15-minute interval, seven customers arrived. 7 6 6 6 4 6 2 6 5 6 6 11 4 5 7 6 27 1 2 4 8 2 6 6 5 5 3 7 5 4 6 2 2 9 7 5 9 8 5 (3a) (2pts) Is the data quantitative or qualitative (3b) (2pts) Is data discrete or continuous? justify your answer. (3c) (2pts) Fill out the table below The number of customers(f) The frequency (f) The relative frequency (fr) Total (3d) (2pts) What is the percentage of exactly seven customers who did arrive at Wendy's during one 15-minute interval? (3e) (2pts) What is the percentage of at most three customers who did arrive at Wendy's during one 15-minute interval? (38) (2pts) What is the percentage of at least one customer who did arrive at Wendy's during one 15-minute interval? (38) (6pts) Construct a frequency histogram. A histogram done without using a ruler you won't get a credit (3h) (2pts) Comment about the shape of the distribution of these data