This reference work is intended for undergraduate, postgraduate, and research students in the fields of biological, ecological, and medical sciences. The book aims to serve as an accessible guide to statistical techniques that will enable students to obtain accurate results and interpret them logically. The methods outlined in this book are commonly used in various disciplines and have been designed to be user-friendly, making them accessible to general readers as well. The book's chapters have been organized in a manner that aligns with the curricula of numerous universities. The book provides a comprehensive range of materials to cover statistical techniques, including examples based on ecological and biological concepts. The content of this book is suitable for use in a variety of academic settings and has been designed to meet the needs of students pursuing studies in the fields of biological, ecological, and medical sciences.