Statistics is the science whereby inferences are made about specific random phenomena on the basis of relatively limited sample material. Today statistics is widely employed in government, business, and all the sciences. Electronic computers have expedited statistical computation, and have allowed statisticians to develop "computer-intensive" methods Research is usually done to solve those questions which are still a puzzle for society. Research can help the human kind to find out new ways to lead healthy life style or how to cure deadly diseases and many more things which are an obstacle in the way of human kind. Although we can¿t say that it is the only way but we can say that it is the most effective way of solving scientific problems.

Dr. Mufti Sheheer is presently a second year post graduate student in the department of orthodontics and dentofacial orthopaedics in Nims Dental College & Hospital Jaipur, Rajasthan, India. He has done his graduation from MA Rangoonwala College Of Dental Sciences & Research Centre, Pune, Maharashtra, India.