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CBSE Class 6  >  Class 6 Notes  >  Mathematics  >  Worksheet: Data Handling and Presentation - 1

Worksheet: Data Handling and Presentation - 1

Q1: Why do we collect data?
(a) For fun only
(b) To record facts and numbers
(c) Cooking
(d) None of the above
Worksheet: Data Handling and Presentation - 1

Q2: Which of these shows information using pictures?
(a) Pictograph
(b) List
(c) Paragraph
(d) All of the above

Q3: What does a bar graph represent?
(a) Numbers and values
(b) Stories
(c) Long answers
(d) None of the above

Q4: In a pictograph, each picture can represent:
(a) One item only
(b) Multiple items
(c) Only data points
(d) None of the above

Q5: Why are infographics used?
(a) To make people confused
(b) To show information in an easy and interesting way
(c) To give very long explanations
(d) None of the above

Fill in the Blanks

Q1: Navya collected data on her classmates' favorite fruits. She found that 8 students liked apples, 12 liked bananas, and 5 liked oranges. The total number of students she surveyed is _______.

Q2: A pictograph uses 1 symbol to represent 5 students. If 4 symbols are used to show the number of students who like chocolate, then _______ students like chocolate.

Q3: In a bar graph, the bar representing the number of students absent in Class 5 is twice the height of the bar for Class 3. If Class 3 had 4 students absent, then Class 5 had _______ students absent.

Q4: If each tally mark represents 1 vote and 15 tally marks are recorded for a favorite game survey, then the total number of votes is _______.

Q5: The number of symbols in a pictograph must be multiplied by _______ to find the total if each symbol represents more than one unit.

True or False

Q1: A bar graph can only have vertical bars.

Q2: In a pictograph, one symbol can represent multiple units.

Q3: The height of a bar in a bar graph does not need to correspond to the frequency it represents.

Q4: A pictograph is useful for representing large amounts of data.

Q5: The scale in a pictograph does not need to be mentioned.

Solve the following

Q1: Study the following tally marks frequency table and answer the questions given below:
Solve the following

(i) How many students score 10 marks?

(ii) How many students scored above 10?

(iii) How many total students appeared on the test?

Q2: Following are the scores of students of class 3 in a maths test:

12, 12, 14, 15, 16, 18, 13, 15, 16, 17, 18, 13, 16, 20, 20, 19, 17, 15, 12, 15, 16, 17, 18, 18, 19, 20, 16. 19.

Make a tally marks table.

Q3: Tim recorded the number of donuts sold over five days.
Read the chart and answer the questions.Solve the following
​

  1. How many donuts did he sell on Thursday?
  2. Which day did he sell the least donuts?
  3. Which day did he sell the most donuts?
  4. Which day did he sell 20 donuts?

You can access the solutions to this worksheet here.

The document Worksheet: Data Handling and Presentation - 1 is a part of the Class 6 Course Mathematics for Class 6.
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FAQs on Worksheet: Data Handling and Presentation - 1

1. What are the different ways to represent data in Class 6 mathematics?
Ans. Data representation includes pictographs, bar graphs, tally marks, and tables-each method organises information visually for easy comparison. Pictographs use symbols, bar graphs display frequencies as rectangular columns, and tally marks record counts efficiently. Choosing the right data presentation format depends on the dataset size and the information students need to communicate clearly.
2. How do I read and interpret a bar graph correctly?
Ans. Reading a bar graph requires identifying the x-axis and y-axis labels, understanding the scale used, and comparing bar heights to extract values. The height of each bar represents the frequency or quantity being measured. Students should note the title, axis labels, and units before drawing conclusions from the visual data display and analysis.
3. What's the difference between a pictograph and a bar graph for data handling?
Ans. Pictographs use symbols or pictures where each symbol represents a fixed quantity, making them ideal for younger learners. Bar graphs use rectangular bars of varying heights on a coordinate system, allowing precise representation of larger datasets. Both organise information visually, but bar graphs provide greater accuracy and flexibility in representing diverse numerical ranges in data presentation.
4. Why do we need to learn data collection and organisation in Class 6 maths?
Ans. Data handling skills teach students to collect, organise, and interpret real-world information systematically. Understanding frequency tables, tally marks, and graphical representations develops logical thinking and problem-solving abilities. These foundational skills support statistical literacy, enabling students to make informed decisions and understand information presented in everyday contexts like surveys and statistics.
5. What are tally marks and how do I use them for recording data?
Ans. Tally marks are symbols used to record and count observations in groups of five-four vertical lines crossed by one diagonal line. This method simplifies counting large datasets and prevents errors during data collection. Tally marks form the basis for creating frequency tables, which then convert into graphical representations like bar graphs and pictographs for better data interpretation and analysis.
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