Which of the statement is incorrect in the context of Karl Pearson’s Coefficient of Correlation?
Answer & explanation
Correct answer: option 3
The correct answer is Option 3: It does not give a precise numerical value of the degree of linear relationship between two variables X and Y.
Karl Pearson’s Coefficient of Correlation This is also known as product moment correlation coefficient or simple correlation coefficient. It gives a precise numerical value of the degree of linear relationship between two variables X and Y. It is important to note that Karl Pearson’s coefficient of correlation should be used only when there is a linear relation between the variables. When there is a non-linear relation between X and Y, then calculating the Karl Pearson’s coefficient of correlation can be misleading.