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Which two graphs are suitable for displaying categorical data?
bar graph
Why are graphs helpful for displaying data?
They help you identify patterns in the data.
What kind of graph is used to compare data that does not change continuously?
If the data does not change continuously, it is called discrete data, and is commonly compared by use of a bar chart.Technical note: please note the use of the word chart, graph is commonly misused in a mathematical sense like this. A graph, mathematically, is a series/group of nodes that represent information and are connected by lines/edges that represent a link to other information. Bar graphs, line graphs, histogram graphs, bubble graphs, area graphs etc, are all technically chartsnot graphs. For more info see the link below on graph theory.
What are bar graphs best at displaying?
They are best for showing sets of data that just have an amount. This usually happens with a survey.
Why do bar graphs have to start at zero but line graphs do not?
line graphs show a change over time
