A Professor of Statistics (Now retired) with 40 plus years of teaching in Universities across India. Born and brought up and educated in Chennai, Tamilnadu, India. My subjects include Applied Statistics, Engineering Mathematics, Operations Research, and Numerical Methods. My hobby is coming out with digital books on different subjects. Visit www.raisacademy.org/wp2 for more information. Some of my books on Statistics are available on amazon. For details write to aramu47@gmail.com