Basic Statistics covers a wide range of statistical theory taught in almost all faculties. Theory followed by relevant formulae is fully expatiated through solved numerical problems. Mathematical derivations and proofs of the formulae are kept out of scope of this book. The book presupposes no advance knowledge of Mathematics. Basic Statistics fully covers the syllabi of Statistics courses running in various universities and professional institutions in the faculties of Commerce, Arts, Business Management, Agriculture, Home Science, Pharmacy, C.A.(P.E.-I), I.C.W.A. Inter, etc. This book provides exhaustive matter in a simple, lucid and exact manner for inquisitive minds. Correctness of matter in all respect is its another greatest feature. Sixth edition of Basic Statistics is revised keeping in view the modern trend and requirements of the students and teachers alike. The present edition is updated by adding computer guidance at the end of each chapter with regard to solving numerical problems through SPSS packages. This will render great help to students of all faculties. Two chapters entitled `Research Processes` and `Experimental Research Designs` added in fourth edition made the book complete for all courses in its own sense. Readers will notice that sixth edition has been improved and updated by adding or changing matter wherever needed. Also all kinds of errors, howsoever small they may be, have been eliminated. A brief discussion of census 2011 has also been added along with the latest population estimates. On the whole, all readers will find the book useful beyond their expectation.