Problems & Solutions in Economics Class 11

6. Organisation of Data : Classification, 7. Presentation of Data : Tables, 8. Diagrammatic Presentation of Data, 9. Graphic (Time Series and Frequency Distribution) Presentation of Data, 10. Measures of Central Tendency : Arithmetic Average, 11. Measures of Central Tendency : Median and Mode, 12. Measures of Dispersion, 13. Correlation, 14. Index Number.