A 2019 study collected by eMarketer asked 800 US smartphone users whether they had used a food delivery app at least once in the last month. The survey also asked which food delivery app, if any, was used. The survey showed that 16.5% of the respondents had used a food delivery app in the last month. Of those that used one, 27.6% used DoorDash, 26.7% used Grubhub, 25.2% used UberEats, while the rest used another. To display this data you should use a stem-and-leaf plot. histogram. time-plot. bar graph. five-number summary.