Statistics is a crucial process behind how we make discoveries in science, make decisions based on data, and make predictions. This book has been prepared for students that they have acquired or gain fair knowledge of statistics and easy presentation of simple language has written for proper understand each and every topic. The chapters have been so arranged to give a sequential knowledge of the introduction of statistics, etc., in this book with practical approaches. This book would serve not only for undergraduate but post-graduate students of biotechnology, MSc, BSc in Environment, Bioinformatics, and Agriculture, all life science students, BCom, MCom, B.A, M.A, MPhil, and also research scholar of various universities.