The present edition of the book has been thoroughly revised. In this revised edition of the books following chapters:

1. 1. Measurement/Measures of Central Tendency
   2. Analysis of Time Series
   3. Index Numbers

have been thoroughly revised and several new illustrations and questions have been included. Every possible care has been taken to avoid errors of print and principle. Still, we stand apologetic for the errors, if any, having crept in the book unnoticed.

The illustrations and exercises have been selected from the various Universities Examinations of the last ten years and have been given topic-wise graded from easy to difficult.

Principle of Statistics Syllabus For B.Com II Year of Awadhesh Pratap Singh University, Devi Ahilya University, Rani Durgavati Vishwavidyalaya, Dr. Harisingh Gour University, Barkatullah University, Jiwaji University, Vikram University

Unit-I Statistics – Meaning, Definitions, Significance, Scope, and Limitations of Statistics. Statistical investigation. Process of Data Collection, Primary and Secondary Data, Methods of Sampling, Preparation of Questionnaire, Classification and Tabulation of Data, Preparation of Statistical Series and its types.

Unit-II Measurement of Central Tendency – Mean, Median, Quartile, Mode, Geometric Mean, and Harmonic Mean.

Unit-III Dispersion and Skewness. Analysis of Time Series Meaning, Importance, Components, Decomposition of Time Series, Measurement of Long-term Trends, Measurement of Cyclical and Irregular Fluctuations.

Unit-IV Correlation – Meaning, Definitions, Types, and Degree of Correlation, Methods of Correlation. Regression, Analysis – Meaning, Uses, Difference between Correlation and Regression, Linear Regression, Regression Equations, Calculation of Coefficient of Regression.

Unit-V Index Number – Meaning, Characteristics, Importance and Uses. Construction of Index Numbers – Cost of living Index, Fisher’s Ideal Index Number. Diagrammatic and Graphic Presentation of Data.

Principle of Statistics Book Contents

1. Introduction: Meaning, Definitions, Significance, Scope, and Limitations of Statistics
2. Statistical Investigation
3. Process of Data Collection with Preparation of Questionnaire (Primary and Secondary Data)
4. Methods of Sampling
5. Classification and Tabulation of Data
6. Preparation of Statistical Series and its Types
7. Measurement/Measures of Central Tendency
8. Quartiles
9. Concept of Dispersion and its Measures
10. Skewness and its Measures
11. Analysis of Time Series
12. Correlation
13. Regression Analysis
14. Index Numbers
15. Diagrammatical and Graphical Presentation
16. Graphical Presentation of Data

• Appendix: Log and Antilog Reciprocal Tables and Their Use

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