Questions: Decide if the following statement about graphs is true or false. A graph should have a legend if applicable.

The answer is true: A graph should have a legend if applicable.

Explanation:

• A legend is an essential component of a graph when there are multiple data series or categories represented. It helps the viewer understand what each color, symbol, or pattern in the graph represents.
• If a graph includes different lines, bars, or sections that need to be distinguished from one another, a legend provides clarity and aids in the interpretation of the data.
• In cases where the graph is simple and self-explanatory, a legend may not be necessary. However, when applicable, including a legend enhances the graph's effectiveness in communicating information.