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It's so you can tell what the different coloured bars represent. A bit pointless though if there is only one data set.
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∙ 13y ago
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What is the purpose of the key in a bar graph?
The graph key is to make sure everyone understands what things mean, like a map key
What is the purpose of key for double-bar graph?
To Tell whether which is which. For example let's say you have a red bar and blue bar, how are people going to know which is which? So that's the purpose of the key.
What is the difference between a double bar graph and a bar graph?
The difference between a bar graph and a double bar graph is...... A bar graph displays one set of data, and a double bar graph compares two different sets of information/data.So should have a key.
What part of a graph tells you what a line and bar graph repesent?
It is the legend or key.
What is a purpose of a bar graph?
Bar graphs are a way of visually representing data
What is the purpose of the key in a bar graph?
The graph key is to make sure everyone understands what things mean, like a map key
What is the purpose of key for double-bar graph?
To Tell whether which is which. For example let's say you have a red bar and blue bar, how are people going to know which is which? So that's the purpose of the key.
What is the difference between a double bar graph and a bar graph?
The difference between a bar graph and a double bar graph is...... A bar graph displays one set of data, and a double bar graph compares two different sets of information/data.So should have a key.
What part of a graph tells you what a line and bar graph repesent?
It is the legend or key.
What is a purpose of a bar graph?
Bar graphs are a way of visually representing data
Why does a pictograph and a double-bar graph have a key?
Every graph must have a key. Keys are to show which bit of the graph represent which data and what values are shown by the location or size or colour of the graph.
Why does a pictograph and a double bar graph have a key?
Every graph must have a key. Keys are to show which bit of the graph represent which data and what values are shown by the location or size or colour of the graph.
You can use a table or graph to what your findings?
You can definitely use a table or graph to what your findings. You can use a bar graph for this purpose for example.
How does a bar graph differ from a chart?
A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.
When can you use a key in a bar graph?
no, that's why you label each side as you go.
How does a graph differ from a chart?
A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.A bar graph IS a chart.
What do bar graphs need?
For an ordinary bar graph you need two variables, the dependent variable being numerical. You need at least two observations - unless you want a bar graph that serves no purpose. You could have more than one dependent variables for a stacked or grouped bar graph.
