An excellent book for commerce students appearing in competitive, professional and other examinations. 1.Editing of Collected Data, 2 .Classification and Tabulation of Data., 3. Diagrammatic Presentation of Data, 4. Graphic Presentation of Data, 5. Construction of Frequency Distribution, 6. Measures of Central Tendency, 7. Geometric Mean and Harmonic Mean, 8. Partition Values, 9. Measures of Dispersion, 10. Measures of Skewness, 11. Moments, 12. Measures of Kurtosis, 13. Correlation, Appendix 14. Index Numbers, 15. Analysis of Time Series.