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Definitions:

• Bar chart: A chart that uses horizontal or vertical bars to represent data or information.
• Categories: The different groups or variables being compared in a bar chart.
• Axis: The horizontal or vertical line on a chart that indicates the categories or scale of data.
• Scale: The range of values on an axis.
• Data series: A set of related data points that are plotted on a chart.

5 Examples:

1. A bar chart comparing the population sizes of different countries. The countries would be the categories, and the population sizes would be the data series plotted on the vertical axis.
2. A bar chart showing the market share of different smartphone brands. The brands would be the categories, and the market share percentage would be the data series plotted on the horizontal axis.
3. A bar chart comparing the average temperatures in different cities. The cities would be the categories, and the temperature values would be the data series plotted on the vertical axis.
4. A bar chart showing the number of units sold for different products. The products would be the categories, and the number of units sold would be the data series plotted on the horizontal axis.
5. A bar chart comparing the literacy rates of different states. The states would be the categories, and the literacy rates would be the data series plotted on the vertical axis.

10 Question Quiz:

1. What is a bar chart?
2. What are categories in a bar chart?
3. What is an axis on a chart?
4. What is a scale on a chart?
5. What is a data series on a chart?
6. Can a bar chart have horizontal bars or vertical bars?
7. Can a bar chart have more than one data series?
8. Can a bar chart have a scale that is not numerical?
9. Can a bar chart have negative values?
10. Can a bar chart be used to compare more than two categories?