Answer:
What is a Bar Graph?
(Example in the 1st Picture)
A bar chart or bar graph is a chart or graph that presents categorical data with rectangular bars with heights or lengths proportional to the values that they represent. The bars can be plotted vertically or horizontally. A vertical bar chart is sometimes called a column chart.
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What is a Single Bar Graph ?
(Example in 2nd picture)
Single bar graphs are used to convey discrete values of an item within a category. For instance, a bar graph could display the number of males with a certain trait for specific ages. The discrete value, or the number of instances in which an individual has a certain trait, is displayed by varying the length of the bar.
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Explanation:
The Vertical and Horizontal Examples is in the 1st Picture
