Based on a survey of 15 people at Nagoya University about their preferences for coffee shops on campus, Starbucks was the most popular choice with 6 people, no coffee shop was the least popular choice with only 1 person, 1/15 or 6.7% of people don't like coffee shops, 6/15 or 40% of people want a Starbucks, and 2/15 or 13.3% of people want a Komeda coffee shop. A bar graph would be a good way to visualize this data since it compares the different coffee shop options.