Explain Correlation and its types?

Correlation is a statistical tool that is used to analyze and measure the degree of relationship or degree of association between two or more variables. There are generally three types of correlation:

  • Positive correlation: When we increase the value of one variable, the value of other variable increases respectively, this is called Positive Correlation.

  • Negative correlation: When we increase the value of one variable, the value of other variable decreases respectively, this is called negative Correlation.