Correlation analysis is the statistical tool that measures the relationship between two items. It describes the degree to which one variable is linearly related to another. To begin correlation analysis, firstly we have to select a field that we will make a research in. The collection of data whose properties are analyzed is called 'population'. The population is the complete collection to be studied; it contains all subjects of interest.
When we compare the correlation between two items, one item is called the 'dependent variable' and the other is 'independent variable'. …
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