Represent Data – Represent Ordinal Categorical Data as a Bar Graph . Understandings to look for: 👉 Students who understand the significance of representing Categorical data as a bar graph with separated bars as the data is discrete. 👉 Students who understand the significance of representing Ordinal Categorical data with the categories presented in a logical order across the x-axis of the graph. 👉 Students who can use a many-to-one scale to ensure data can fit when representing it as a graph.