NCERT Solutions for Class 4 Maths Mela Chapter 14 Data Handling

Page 203

Look at the questions asked by Rohan and Anjali.
Tick the question that is the most appropriate for finding the ‘most liked subject’? Why do you think so? Discuss with your friends and teacher.

Answer:
This is the most appropriate question because:
► This question asks only one clear choice from each student.
► Every child gives one favourite subject, so answers can be counted easily.
► When everyone chooses just one subject, we can compare numbers and find which subject is liked by the maximum number of children.
► Other questions like “Which subjects do you like?” allow many answers, which makes it confusing to decide the most liked subject.
To find “the most”, the question must:
► Be clear
► Ask for one option only
► Give answers that are easy to count and compare
That’s why “Which subject do you like the most?” is the best question to ask.

Page 204

Anjali and Rohan recorded the children’s answers (responses) to the question as follows:
They wrote M for Mathematics, L for Languages, T for The World Around Us, A for Arts and P.E. for Physical Education.

Look at the children’s responses above and answer the following questions:
The number of children who like Mathematics the most is ________ .
The number of children who like Language the most is ________ .
The number of children who like The World Around Us the most is ________ .
The number of children who like Physical Education the most is ________ .
The number of children who like Arts the most ________ .
Answer:
The number of children who like Mathematics the most is 10.
The number of children who like Language the most is 8.
The number of children who like The World Around Us the most is 7.
The number of children who like Physical Education the most is 11.
The number of children who like Arts the most 9.

Page 205

Let’s fill the above information in this table.

Now look at the above table and answer the following questions:
What is the most common favourite subject among the children? ___________
What is the least common favourite subject among the children? ___________
Answer:
The most common favourite subject among the children is “Mathematics”.
The least common favourite subject among the children is “The World Around Us”.

Page 205

There are the following two ways to display the information.

Which way of displaying information is easier to understand and why?
Answer:
The table format (option 2) is easier to understand because it organizes the data clearly, showing the count for each subject at a glance, rather than having to count through a long list of letters.

Page 206

Colourful Golas

During school lunch break children rush to eat gola of their favourite colour.
Rohan and Anjali record the golas eaten by different children. They want to eat the one that is most eaten by others.
They both start recording the golas eaten by the children.

Look at the information given above. Colour the line drawing of the golas appropriately.
1. Which colour ice gola do the children eat:
a) the most
b) the least
How do you know?
Answer:
a) yellow
b) blue
We can know which ice gola eaten least or most by counting the number of ice golas of each color which is given on the provided image.
Yellow has the highest count (10), so it is the most popular among the children.

2. Which colour gola would Anjali and Rohan have bought?
Answer:
Anjali and Rohan want to eat the one that is most eaten by others.
Since the most eaten gola is yellow, so they have bought yellow gola.

3. Which color golas did boys eat the most?
Answer:
As per the image boys eaten yellow gola most. Boys had 6 gola.

4. Which colour golas did girls eat the most?
Answer:
Girls have eaten most Red, Orange, Yellow. Girls eaten 4 each of those colours.

5. Which of the ways of representing data did you use to answer these questions and why?
Answer:
I used the pictorial representation (pictures/pictograph) to answer these questions.
Because the data is shown using pictures for boys and girls separately, it is easy to count the pictures and compare them. By looking at the number of pictures for each colour of gola, we can clearly see which colour was eaten the most and the least. Pictures make the information simple, clear and easy to understand.

Page 207

Activity Chess or Cricket

Find out from the class mate how many of them play only chess, only cricket, both or neither.

Answer:

Now let us organise the above data in the table.

Answer:

Answer these questions based on the data collected from your grade.
1. Who plays Chess the most? _______ (Boys/Girls)
2. Who plays Cricket the most? _______ (Boys/Girls)
3. How many children play both types of games? _______
Answer:
1. Boys and Girls are same.
Because:
Number of girls playing chess = 1 + 3 = 4
Number of Boys playing chess = 3 + 1 = 4
2. Boys
Because:
Number of girls playing cricket = 3
Number of Boys playing cricket = 4 + 1 = 5
3. 4 children (3 girls + 1 boy).

Page 208

Bal Mela

Anjali and Rohan have recorded the number of people who ate fruit chaats and sandwiches in the Bal Mela over three days, using a Pictograph.

Answer:
Fruit chaats: 28
Day 1 = 7
Day 2 = 12
Day 3 = 9
Total Fruit chaats sold = 7 + 12 + 9 = 28
Sandwiches: 46
Day 1 = 12
Day 2 = 16
Day 3 = 18
Total sandwiches sold = 12 + 16 + 18 = 46

Page 208

Let Us Do

1. Complete the table.

Answer:

2. On which day were the most sandwiches sold?
Answer:
On day 3 most sandwiches sold (18 sandwiches).

3. Which item had the highest sale on Day 2?
Answer:
Day 2: Fruit chaats sale = 12
Day 2: Sandwiches sale = 16
So, Sandwiches had highest day 2 sale.

4. Complete the table given below. Circle the day that had the highest sales.

Answer:

Cover everyone likes to watch T.V. and now and then have you ever considered that you can do a lot of many things while you are watching the T.V. and wasting the time. This chapter will show you how you can be more productive and use your time in better way.

You have already learned how to make the data and utilize it to get the knowledge. So this chapter will make you do some interesting data which will give you some of the most interesting facts that you can change your perceptions of how you do the things in your whole day. Try to improve this time by creating the data in some other way so that you can showcase the skill that you gather by practicing.

This chapter already gave you some of the topics you can make the data but try to make the data with some different designs, not just simple tables. However, it is not bad idea that your table making is wrong but try to take help from your elder sibling or maybe from your parents. As long as the results are good and accurate you are good with the study.

Check during the watching T.V. how much time you have actually wasted and what if you had utilized that time looking into the encyclopedia in your bookshelf may be drawing some important shapes an or maybe study about the sum the interesting facts about the animal and environment around you.

The last option is to practice chapters that you have already studied because you might be able to play again. Once you are completing your chapters then no one will ask you not to play because you had already practiced the math.

These all things are already given in the chapter if you read and make the data. You will find-out it yourself. Not only that data, things are only interesting topic in the chapter found it. you can actually measure the head of your friend’s. How to prepare the drama for your class and school is also a challenge and I suggest that you complete the work and check these topics and study well and try to implement the idea to make drama for your class.

This is the best thing as you don’t have to compete for anyone and also who doesn’t want to act as the princess or maybe king in shiny armor. This all is given in the chapter if you read the chapter instead of wasting time on T.V.