A marketing manager needs to present a clear comparison of the total annual sales figures for five distinct product lines. The goal is to easily identify which product line generated the most and least revenue. Which chart type is the most effective choice for this purpose?
Line chart
Bar chart
Bubble chart
Scatter plot
A bar chart is the correct choice because it is specifically designed to compare values across discrete categories, such as different product lines. The length of each bar directly represents the sales value, making it easy to see which products performed best. A line chart is not ideal as it is best used for showing trends over a continuous period of time. A scatter plot is used to show the relationship or correlation between two numerical variables, not for comparing distinct categories. A bubble chart is a variation of a scatter plot that adds a third variable represented by the size of the bubbles, making it unnecessarily complex for this simple comparison.
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