NCERT Solutions Ganita Prakash Chapter 4 Figure it Out — Collecting and Organising Data

Turn the long list into a frequency table. Read the list once, put a tally mark against a game every time a child chooses it, and then count the tally marks.

1. Write the different games in one column — kabaddi, hockey, cricket, satoliya (pittu), football, badminton.
2. Go down the list name by name. For every child put one mark | against the game they named.
3. After four marks draw the fifth across them — |||| — so the marks always come in bundles of five and are easy to count.
4. Count the marks of each game. That count is the frequency of the game.
5. The game with the biggest frequency is the most popular game.

Hockey is the most popular game — 8 of the 31 students chose it.

This is an activity for your own class. Do it exactly the way Naresh and Navya did:

1. Frame one clear question — “Which one game do you like the most?” Every child answers with exactly one game.
2. Collect — go to each classmate and note the answer, or let each child raise a hand when their game is called out.
3. Organise — put a tally mark against the game each time it is named, in bundles of five.
4. Count — write the frequency beside each game and add them up. The total must equal the number of children in your class.
5. Conclude — the game with the largest frequency is the most popular game of your class.

In this sample class of 30 children, cricket would be the most popular game. Your own class will almost certainly give a different answer — that is the whole point of collecting data.