Chapter 11 of 11
Chapter 11: Data Handling
Categorizing, Tally Charts, Letter Counting & Pictograph Analysis | CBSE Session 2026–27
Core Pedagogical Competencies & Concepts
- Collecting data through counting and sorting into distinct categories.
- Reading simple pictographs and block charts where 1 symbol represents 1 item.
- Analyzing name lengths and most/least frequent elements in everyday surveys.
All Textbook Exercises & In-Text Tasks (17 Questions)
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Q1
Counting Categories in a Picture
In a park picture, children count the animals:
• Dogs: 4
• Cats: 3
• Birds on trees: 8
• Squirrels: 5
How many total animals were observed in the park?
[2 Marks]
• Dogs: 4
• Cats: 3
• Birds on trees: 8
• Squirrels: 5
How many total animals were observed in the park?
✅ Step-by-Step Solution & Working
Calculation:
• Dogs = 4
• Cats = 3
• Birds = 8
• Squirrels = 5
• Total = 4 + 3 + 8 + 5 = 20 animals.
• Dogs = 4
• Cats = 3
• Birds = 8
• Squirrels = 5
• Total = 4 + 3 + 8 + 5 = 20 animals.
CBSE Step-by-Step Marking Scheme
Addition sentence (4 + 3 + 8 + 5)
1 M
Total = 20 animals
1 M
Q2
Analyzing Name Letter Lengths
Count the number of letters in each child's name:
(a) AMAN
(b) PRIYANKA
(c) DEV
(d) MEENAKSHI
Which name is the longest and which is the shortest?
[3 Marks]
(a) AMAN
(b) PRIYANKA
(c) DEV
(d) MEENAKSHI
Which name is the longest and which is the shortest?
✅ Step-by-Step Solution & Working
Letter Counts:
(a) AMAN = 4 letters
(b) PRIYANKA = 8 letters
(c) DEV = 3 letters
(d) MEENAKSHI = 9 letters.
• Longest name: MEENAKSHI (9 letters).
• Shortest name: DEV (3 letters).
(a) AMAN = 4 letters
(b) PRIYANKA = 8 letters
(c) DEV = 3 letters
(d) MEENAKSHI = 9 letters.
• Longest name: MEENAKSHI (9 letters).
• Shortest name: DEV (3 letters).
CBSE Step-by-Step Marking Scheme
All letter counts correct
1 M
Longest: MEENAKSHI
1 M
Shortest: DEV
1 M
Q3
Letter Frequency in Names
In the names: RAM, AMAN, SARITA, TARUN, count how many times the letter 'A' appears in total.
[2 Marks]
✅ Step-by-Step Solution & Working
Count of letter 'A':
• RAM ➔ 1 'A'
• AMAN ➔ 2 'A's
• SARITA ➔ 2 'A's
• TARUN ➔ 1 'A'
• Total times letter 'A' appears = 1 + 2 + 2 + 1 = 6 times.
• RAM ➔ 1 'A'
• AMAN ➔ 2 'A's
• SARITA ➔ 2 'A's
• TARUN ➔ 1 'A'
• Total times letter 'A' appears = 1 + 2 + 2 + 1 = 6 times.
CBSE Step-by-Step Marking Scheme
Letter counts per name
1 M
Total: 6 times
1 M
Q4
Reading a Pictograph
In a pictograph where 1 📚 symbol = 1 library book read:
• Rohit: 📚📚📚📚 (4)
• Simran: 📚📚📚📚📚📚 (6)
• Tanu: 📚📚 (2)
(a) Who read the most books?
(b) How many books did all three read altogether?
[2 Marks]
• Rohit: 📚📚📚📚 (4)
• Simran: 📚📚📚📚📚📚 (6)
• Tanu: 📚📚 (2)
(a) Who read the most books?
(b) How many books did all three read altogether?
✅ Step-by-Step Solution & Working
Answers:
(a) Simran read the most books (6 books).
(b) Total books = 4 + 6 + 2 = 12 books.
(a) Simran read the most books (6 books).
(b) Total books = 4 + 6 + 2 = 12 books.
CBSE Step-by-Step Marking Scheme
Simran read most
1 M
Total = 12 books
1 M
Q5
Comparing Data Categories
Using the pictograph above (Rohit 4, Simran 6, Tanu 2), how many more books did Simran read than Tanu?
[2 Marks]
✅ Step-by-Step Solution & Working
Calculation:
• Simran's books = 6
• Tanu's books = 2
• Difference = 6 - 2 = 4 more books.
• Simran's books = 6
• Tanu's books = 2
• Difference = 6 - 2 = 4 more books.
CBSE Step-by-Step Marking Scheme
Subtraction 6 - 2
1 M
Answer: 4 more books
1 M
Q6
Shoe Size Survey
A survey of 25 students' shoe sizes shows:
• Size 1: 5 students
• Size 2: 12 students
• Size 3: 8 students
(a) Which shoe size is the most common?
(b) Which shoe size is the least common?
[2 Marks]
• Size 1: 5 students
• Size 2: 12 students
• Size 3: 8 students
(a) Which shoe size is the most common?
(b) Which shoe size is the least common?
✅ Step-by-Step Solution & Working
Answer:
(a) Size 2 is the most common shoe size (12 students).
(b) Size 1 is the least common shoe size (5 students).
(a) Size 2 is the most common shoe size (12 students).
(b) Size 1 is the least common shoe size (5 students).
CBSE Step-by-Step Marking Scheme
Most common: Size 2
1 M
Least common: Size 1
1 M
Q7
Vehicle Traffic Tally
During 15 minutes of watching from the gate, children recorded vehicles passing:
• Bicycles: 10
• Motorbikes: 7
• Cars: 5
• Buses: 2
(a) Which vehicle passed the greatest number of times?
(b) Did more cars pass or more motorbikes?
[2 Marks]
• Bicycles: 10
• Motorbikes: 7
• Cars: 5
• Buses: 2
(a) Which vehicle passed the greatest number of times?
(b) Did more cars pass or more motorbikes?
✅ Step-by-Step Solution & Working
Answer:
(a) Bicycles passed the greatest number of times (10).
(b) More motorbikes passed (7 motorbikes > 5 cars).
(a) Bicycles passed the greatest number of times (10).
(b) More motorbikes passed (7 motorbikes > 5 cars).
CBSE Step-by-Step Marking Scheme
Bicycles greatest count
1 M
More motorbikes than cars
1 M
Q8
Monthly Weather Chart
In the 30 days of September, the weather was recorded as:
• Sunny days: 16
• Rainy days: 10
• Cloudy days: 4
How many days were NOT rainy in September?
[2 Marks]
• Sunny days: 16
• Rainy days: 10
• Cloudy days: 4
How many days were NOT rainy in September?
✅ Step-by-Step Solution & Working
Calculation:
• Total days = 30
• Rainy days = 10
• Days not rainy = Sunny (16) + Cloudy (4) = 20 days (or 30 - 10 = 20).
• Total days = 30
• Rainy days = 10
• Days not rainy = Sunny (16) + Cloudy (4) = 20 days (or 30 - 10 = 20).
CBSE Step-by-Step Marking Scheme
Calculation method
1 M
Answer: 20 days
1 M
Q9
Favorite Sport Survey
In a class survey on favorite games:
• Cricket: 14 votes
• Football: 8 votes
• Badminton: 6 votes
What is the total number of students who voted?
[2 Marks]
• Cricket: 14 votes
• Football: 8 votes
• Badminton: 6 votes
What is the total number of students who voted?
✅ Step-by-Step Solution & Working
Calculation:
• Total voters = 14 + 8 + 6 = 28 students.
• Total voters = 14 + 8 + 6 = 28 students.
CBSE Step-by-Step Marking Scheme
Sum setup 14 + 8 + 6
1 M
Answer: 28 students
1 M
Q10
Tally Chart Making
Draw tally marks or write counts for the following fruit collection: 4 apples, 6 bananas, 3 oranges.
[2 Marks]
✅ Step-by-Step Solution & Working
Tally Table:
• Apples: |||| (Count: 4)
• Bananas: |||| | (Count: 6)
• Oranges: ||| (Count: 3).
• Apples: |||| (Count: 4)
• Bananas: |||| | (Count: 6)
• Oranges: ||| (Count: 3).
CBSE Step-by-Step Marking Scheme
Correct representation for all 3 fruits
2 M
Q11
Water Glasses Drank Daily
Five friends record how many glasses of water they drink each day:
• Aarav: 6
• Tanya: 8
• Kabir: 7
• Meera: 8
• Vicky: 5
(a) Which two friends drank the same number of glasses?
(b) Who drank the least water?
[2 Marks]
• Aarav: 6
• Tanya: 8
• Kabir: 7
• Meera: 8
• Vicky: 5
(a) Which two friends drank the same number of glasses?
(b) Who drank the least water?
✅ Step-by-Step Solution & Working
Answer:
(a) Tanya and Meera drank the exact same amount (8 glasses each).
(b) Vicky drank the least water (5 glasses).
(a) Tanya and Meera drank the exact same amount (8 glasses each).
(b) Vicky drank the least water (5 glasses).
CBSE Step-by-Step Marking Scheme
Tanya and Meera identified
1 M
Vicky drank least
1 M
Q12
True or False • Data Handling
Write True or False:
(a) A pictograph uses pictures or symbols to represent data numbers.
(b) A tally table helps us organize messy information neatly.
(c) In a survey of 10 people, the highest vote can be 12.
[3 Marks]
(a) A pictograph uses pictures or symbols to represent data numbers.
(b) A tally table helps us organize messy information neatly.
(c) In a survey of 10 people, the highest vote can be 12.
✅ Step-by-Step Solution & Working
Answers:
(a) True
(b) True
(c) False (In a survey of 10 people, votes cannot exceed 10).
(a) True
(b) True
(c) False (In a survey of 10 people, votes cannot exceed 10).
CBSE Step-by-Step Marking Scheme
All 3 correct (1 M each)
3 M
Q13
Difference between Highest and Lowest
In an art competition, points scored by 4 house teams were: Blue (24), Red (30), Green (18), Yellow (22). What is the difference between the highest and lowest scores?
[2 Marks]
✅ Step-by-Step Solution & Working
Calculation:
• Highest score = 30 (Red House)
• Lowest score = 18 (Green House)
• Difference = 30 - 18 = 12 points.
• Highest score = 30 (Red House)
• Lowest score = 18 (Green House)
• Difference = 30 - 18 = 12 points.
CBSE Step-by-Step Marking Scheme
Highest (30) and Lowest (18)
1 M
Difference = 12 points
1 M
Q14
Data Riddle
I show numbers using little pictures of apples, stars, or smiley faces so you can read them at a single glance. What kind of chart am I?
[1 Marks]
✅ Step-by-Step Solution & Working
Answer:
You are a Pictograph.
You are a Pictograph.
CBSE Step-by-Step Marking Scheme
Identified Pictograph
1 M
Q15
Missing Data Deduction
A basket has 20 total fruits. 8 are mangoes and 7 are apples. The remaining fruits are guavas. How many guavas are in the basket?
[2 Marks]
✅ Step-by-Step Solution & Working
Calculation:
• Mangoes + Apples = 8 + 7 = 15 fruits.
• Total fruits = 20
• Guavas = 20 - 15 = 5 guavas.
• Mangoes + Apples = 8 + 7 = 15 fruits.
• Total fruits = 20
• Guavas = 20 - 15 = 5 guavas.
CBSE Step-by-Step Marking Scheme
8 + 7 = 15
1 M
20 - 15 = 5 guavas
1 M
Q16
Let Us Think • Why We Collect Data
Why does a school principal count the number of boys and girls in every classroom at the start of the year?
[2 Marks]
✅ Step-by-Step Solution & Working
Answer:
• To know how many desks, chairs, textbooks, uniforms, and mid-day meal plates are needed for everyone so no child faces a shortage.
• To know how many desks, chairs, textbooks, uniforms, and mid-day meal plates are needed for everyone so no child faces a shortage.
CBSE Step-by-Step Marking Scheme
Planning resources (desks/books/meals) explained
2 M
Q17
Textbook Data • School Bus Tally
Children recorded the colours of cars in the school parking lot: 8 White cars, 5 Red cars, 4 Blue cars, and 3 Silver cars.
(a) Which colour car is the most common?
(b) How many cars were counted in total?
[2.5 Marks]
(a) Which colour car is the most common?
(b) How many cars were counted in total?
✅ Step-by-Step Solution & Working
Step-by-Step Solution:
(a) White cars are the most common (8 cars).
(b) Total cars = 8 + 5 + 4 + 3 = 20 cars in total.
(a) White cars are the most common (8 cars).
(b) Total cars = 8 + 5 + 4 + 3 = 20 cars in total.
CBSE Step-by-Step Marking Scheme
White most common
1 M
Total 20 cars
1.5 M
🌟 NEP 2020 Competency-Based Case Study
Class 2 Favorite Fruit Survey
The class teacher surveys all 30 students about their single favorite fruit. The findings are: 12 students like Mango, 8 students like Apple, 6 students like Banana, and 4 students like Orange.
Analytical Task: Which fruit is the most popular in the class? How many more students prefer Mango over Banana?
Evaluation & Model Answer:
1. Mango is the most popular fruit with 12 votes (highest count).
2. Difference between Mango and Banana = 12 - 6 = 6 more students prefer Mango.
2. Difference between Mango and Banana = 12 - 6 = 6 more students prefer Mango.
Rubric: 1.5 M for Mango as most popular + 1.5 M for difference (6)