The line plot represents the wait time in line for a ride at a local fair. A line plot titled Wait Time at the Fair. The horizontal line labeled Time in Minutes begins at 8, with every one unit labeled up to 19. There is one dot above 14, 15, and 16. There are two dots above 12 and 13. There are four dots above 10 and 11. Which of the following best describes the shape of the data, and why?