Data and Data Analysis Concepts
Introduction
One of the major functions of data analysis is to describe the data in a way that is easy to comprehend and communicate. This can be done both by presenting the data in graphical form and by calculating various summary statistics, such as the measures of central tendency and the measures of variability. The graphical techniques enable the analyst to describe a data set that is more concise than the original data. These techniques help reveal the essential characteristics of the data so that effective decisions can be made.
The graphical techniques described here are useful in the following ways:
• The techniques will help you gain insight into the way the variable or variables seem to behave. ...
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