Dominic Ravichandran2025-12-152025-12-152007-072679-2682https://ds.dmiseu.org/handle/123456789/506In this paper, a calculation of correlation coefficient between various water quality parameters of Bhavani river is carried out. The analysis show significant linear relationship between pH, alkalinity, hardness, Ca 2+, Mg2+, concentration of F- and total solids. Finally, multiple regression equation relating hardness with other paramters is developed. The usefulness of correlation and implication of regression equations are discussed.Article