Final answer:
A list that identifies the patterns or colors of the data series or categories in a chart is called a legend. The legend helps the viewer understand the data and interpret the information accurately.
Step-by-step explanation:
A list that identifies the patterns or colors of the data series or categories in a chart is called a legend.
In a chart, the legend is typically displayed as a key that explains what each color or pattern in the chart represents. It helps the viewer understand the data and interpret the information accurately.
For example, in a bar chart, the legend may indicate that the red bars represent one category, while the blue bars represent another category. In a line graph, the legend may show that a solid line represents one data series, while a dotted line represents another data series.