What will likely happen if no correlation exists between two variables?
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A. As one variable changes, one cannot predict a value for the other variable B. As one variable increases, the other variable decreases C. As one variable decreases, the other variable decreases D. As one variable decreases, the other variable increases
When no correlation is there between two variables, then as one variable changes, one cannot predict a value for the other variable. Correlation and dependence is a topic of statistics in which it is investigated whether two variables carry any sort of statistical relationship or not.
In common usage, correlation can be defined as the extent to which two variables are likely to have a linear relationship among each other. Correlations can be used to predict behavior of variables such as the weather and the electricity demand. However in general, the presence of a correlation does not indicate that there will definitely be a causation.