A math teacher wants to use a graph to show his students' scores on the last exam:

87, 74, 88, 93, 65, 96, 81, 88, 90, 79, 84, 82, 77, 86, 94, 85, 90

He is thinking about grading on a curve, so he wants to see how the scores were distributed, including the median, the low score, and the high score. Which type of graph is the most appropriate?