Collect data of CBSE result of class 10 in your school. Present data in term of histogram and frequency polygon.
The similar question has been covered in our T.R. Jain solutions. Follow the link to view the same.
https://www.meritnation.com/cbse/class11-commerce/textbook-solutions/economics/tr-jain-&-vk-ohri-(2015)/frequency-diagrams--histogram--polygon-and-ogive/page129-essential-practicals-qno11/1185_5817_36194/
We would advice you to not to keep on piling your questions, rather, you should keep posting 1 to 2 questions per subject (Accountancy, Economics and Business Studies) on everyday basis. Ideally, you should go through the study material that is available on our website and look for the answers to the questions. This will not only help you to enhance your analytical abilities but also will help you to learn the application of your knowledge. In this manner, you will gain confidence and will help you in evaluating your preparation.
https://www.meritnation.com/cbse/class11-commerce/textbook-solutions/economics/tr-jain-&-vk-ohri-(2015)/frequency-diagrams--histogram--polygon-and-ogive/page129-essential-practicals-qno11/1185_5817_36194/
We would advice you to not to keep on piling your questions, rather, you should keep posting 1 to 2 questions per subject (Accountancy, Economics and Business Studies) on everyday basis. Ideally, you should go through the study material that is available on our website and look for the answers to the questions. This will not only help you to enhance your analytical abilities but also will help you to learn the application of your knowledge. In this manner, you will gain confidence and will help you in evaluating your preparation.