define i. data marker, ii. data series as used in spreadsheet charts DEE1 (OCT/NOV 2016)

Data markers and data series are important concepts in the context of spreadsheet charts.

1. Data markers: Data markers are the individual data points that are plotted on a chart. These data points are represented by a symbol, such as a dot or a bar, and are typically used to show the value of a particular variable at a specific point in time. For example, a line chart might use data markers to show the value of a company’s stock price at different points in time.
2. Data series: A data series is a set of related data markers that are plotted on a chart. A data series typically represents a single variable or measure, such as sales revenue or market share. For example, a column chart might use multiple data series to show the sales revenue for different product lines. Data series are typically represented by different colors or patterns on a chart, which makes it easy to distinguish between them.