Download or read book Problems & Solutions in Economics Class XI by Dr. Anupam Agarwal, Mrs. Sharad Agarwal written by Dr. Anupam Agarwal and published by SBPD Publications. This book was released on 2020-06-27 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Organization of Data : Classification, 2. Presentation of Data : Tables, 3. Diagrammatic Presentation of Data, 4. Graphic (Time Series and Frequency Distribution) Presentation of Data, 5. Measures of Central Tendency : Arithmetic Average, 6. Measures of Central Tendency : Median and Mode