The worldwide sales (in billions of dollars) for several...

The worldwide sales (in billions of dollars) for several fast-food franchises for a specific year are shown. Construct a vertical bar graph and a horizontal bar graph for the data. $$ \begin{array}{lr} \text { Wendy's } & \$ 8.7 \\ \text { KFC } & 14.2 \\ \text { Pizza Hut } & 9.3 \\ \text { Burger King } & 12.7 \\ \text { Subway } & 10.0 \end{array} $$

The worldwide sales (in billions of dollars) for several fast-food franchises for a specific year are shown. Construct a vertical bar graph and a horizontal bar graph for the data.
$$
\begin{array}{lr}
\text { Wendy's } & \$ 8.7 \\
\text { KFC } & 14.2 \\
\text { Pizza Hut } & 9.3 \\
\text { Burger King } & 12.7 \\
\text { Subway } & 10.0
\end{array}
$$

Key Concepts

Scales and Axes

When constructing either a vertical or horizontal bar graph, it is crucial to select appropriate scales and clearly label the axes. The scale should accommodate the range of data values effectively to ensure accurate representation, while the axes should be marked with descriptive labels to provide context and enhance the interpretability of the graph.

Bar Graph

A bar graph is a chart that uses rectangular bars to represent data values. The length or height of each bar is proportional to the quantity it represents, making it easier to compare different categories or groups. Bar graphs are commonly used to display discrete, categorical data in a clear visual format.

Vertical Bar Graph

A vertical bar graph displays data using bars that extend vertically from the horizontal axis. Each bar’s height reflects the magnitude of the data value, and the base of the bars aligns along the horizontal axis, which is typically used for category labels. This type of graph is particularly effective for comparing values across different categories or groups.

Horizontal Bar Graph

A horizontal bar graph depicts data with bars that extend horizontally from the vertical axis. In this graph, the length of each bar represents the data value, and the labels are placed on the vertical axis. Horizontal bar graphs are useful, especially when category names are lengthy or when there are many categories, as they allow for better readability of the labels.

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