Dear All,
I would appreciate your help on the following please:
The correlation between y and x1 x2 is negative but between y and the interaction between x1 and x2 is positive, that's strange! Could somebody explain this to me, please?
Array
Specialized on Data processing, Data management Implementation plan, Data Collection tools - electronic and paper base, Data cleaning specifications, Data extraction, Data transformation, Data load, Analytical Datasets, and Data analysis. BJ Data Tech Solutions teaches on design and developing Electronic Data Collection Tools using CSPro, and STATA commands for data manipulation. Setting up Data Management systems using modern data technologies such as Relational Databases, C#, PHP and Android.
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