No. It uses continuous data.
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Not true. It can use either discrete or continuous data.
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Almost any kind of graph can be used to show discrete data: You can use a line graph (most economic data), a bar graph (demographics), a pictogram, a pie chart, a scatter plot, radar. Although 3-d charts can also be used, they are very poor at conveying information because of the difficulty in interpreting depth.
The scatter diagram is used when the data is in a "Raw state" or what is referred to as "Raw Data". Example 10, 20,10,50,90,80,56,70,70,
Yes.
A bar graph shows discreet data, but other types can also.
Most scientists prefer to use scatter plots.Qualitative data describes the situation and reaction in descriptive terms.Gurjot Singh Sodhi