A Textbook of Agricultural Statistics About the Author Prof. R. Rangaswamy is a retired Professor of Statistics, Tamil Nadu Agricultural University, Coimbatore. He obtained his B.Sc. degree in Statistics from University of Madras in 1963 and M.Sc. degree in Statistics from Annamalai University in 1965. He took his Ph.D. in Statistics from University of Madras in the year 1998.He has wide range of experience in teaching and applied research. He worked as Statistician in Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry from 1966-1971, as Tutor in Bio-Statistics in All India Institute of Medical Sciences, New Delhi from 1971-1975 and Assistant Professor of Statistics in P.S.G. College of Arts and Science, Coimbatore from 1975-1976 before joining Tamil Nadu Agricultural University, Coimbatore as Assistant Professor of Agricultural Statistics. He retired as Professor of Agricultural Statistics in the year 2002. He was also Member, Advisory Committee for several Postgraduate and Ph.D. Students of Tamil Nadu Agricultural University. The author has fifteen research papers to his credit.