In our everyday life, we come across the word "statistics" many times. Sometimes in the census and sometimes in governmental plans. Statistics is a subject used in almost all such subjects which we use in our daily life. Statistics is the science of learning from data. Statistical knowledge helps us to use appropriate methods to collect data, perform correct analysis, and present results effectively. Statistics is an important process behind how we discover, make decisions based on data and make predictions in science. Statistics allows us to understand a topic more deeply. Statistics is an exciting field all about discovery, learning, and the thrill of challenging your beliefs. Statistics facilitate the creation of new knowledge. At present, statistics is being used more and more in research work in the field of social science. To mature ourselves in all these fields, it is necessary that we know how to analyze data well, i.e., we must have knowledge of statistics. The present book "Sankhyiki" is an attempt in order to reduce the thirst for knowledge of students and scholars. Through this book, an attempt has been made to teach statistical knowledge in a simple way. This book will prove to be a suitable companion for the students preparing for graduation, post-graduation, UGC-NET, SET and other competitive examinations. The simplicity of the language has been taken care of in the book. Simultaneously, with the help of examples, an attempt has been made to explain the related facts.

There are a total of twelve chapters in this book with the help of which every effort has been made to present the various concepts of statistics easily such as Chapter 1 - Meaning and Nature of Psychology Research, Chapter 2 - Frequency Distribution and Graphing of Frequency, Chapter 3 - Measurement of Central Tendency, Chapter 4 - Measures of Variability or Variability, Chapter 5 - Normal Distribution, Chapter 6 - Chi-square Test, Chapter 7 - Correlation, Chapter 8 - Standard Error of Mean, Chapter 9

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