Data Handling Worksheet for Class 7 with Answers

In mathematics, data handling is a crucial concept that helps us understand how to collect, organize, and interpret data. Data handling involves various processes, including data collection, data representation, and data interpretation. The worksheet on data handling for Class 7 is designed to help you practice and reinforce your understanding of these processes. The Data Handling Class 7 worksheet with answers includes a variety of exercises that cover the definitions, types, and properties of data, as well as how to collect, organize, and interpret data effectively.

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Data Handling Class 7 Worksheet with Answers

Below are the maths Data Handling Class 7 worksheets with answers which include practice exercises:

Data Handling Class 7 Worksheet 1

Section A: Multiple Choice Questions (MCQs)

1. Which of the following is a method of data collection?

a) Survey

b) Observation

c) Experiment

d) All of the above

2. What type of graph is used to represent data in categories?

a) Line graph

b) Bar graph

c) Pie chart

d) Histogram

3. Which of the following measures the central tendency of data?

a) Mean

b) Median

c) Mode

d) All of the above

Section B: Fill in the Blanks

• The process of arranging data in rows and columns is called __________.
• A graphical representation of data using bars of different heights is called a __________.
• The middle value of a data set when arranged in ascending order is called the __________.

Section C: Short Answer Questions

• Draw and Label: Draw a bar graph to represent the data of students' favorite subjects in a class.
• Calculate the Mean: Find the mean of the following data set: 12, 15, 18, 20, 25.
• Explain: Explain the difference between primary and secondary data with examples.

Data Handling Class 7 Worksheet 1 Answers

Section A: Multiple Choice Questions (MCQs)

d) All of the above

b) Bar graph

d) All of the above

Section B: Fill in the Blanks

1. Tabulation
2. Bar graph
3. Median

Section C: Short Answer Questions

1. Draw and Label:

[Diagram should show a bar graph with appropriate labels for the x-axis and y-axis, representing students' favorite subjects].

2. Calculate the Mean:

Sum of data = 12 + 15 + 18 + 20 + 25 = 90

Mean = Sum of data / Number of data points = 90 / 5 = 18

3. Explain:

Primary data is data collected directly from the source through surveys, experiments, or observations. Example: Conducting a survey to find out the favorite subjects of students in a class.

Secondary data is data that has been collected and published by someone else. Example: Using census data to analyze population trends.

Class 7 All Subject Worksheet

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Data Handling Class 7 Worksheet 2

Section A: True or False

A histogram is used to represent categorical data. (True/False)

The mode is the value that appears most frequently in a data set. (True/False)

A pie chart is a circular graph divided into sectors. (True/False)

Section B: Match the Columns

Match the type of data representation with its description:

1. Line Graph
2. Bar Graph
3. Pie Chart
4. Histogram

a) Represents data with bars

b) Represents data with sectors of a circle

c) Represents data with points connected by lines

d) Represents continuous data with bars

Section C: Problem-Solving Questions

Data Interpretation:

Interpret the data from the following bar graph and answer the questions.

Drawing and Identification:

Draw a pie chart to represent the data of students' favorite sports in a class.

Data Relationship Explanation:

Explain the relationship between mean, median, and mode with an example.

Data Handling Class 7 Worksheet 2 Answers

Section A: True or False

• False (A histogram is used for continuous data)
• True
• True

Section B: Match the Columns

1. = c) Represents data with points connected by lines
2. = a) Represents data with bars
3. = b) Represents data with sectors of a circle
4. = d) Represents continuous data with bars

Section C: Problem-Solving Questions

Data Interpretation:

[Interpret the bar graph and provide the answers to the questions based on the given data].

Drawing and Identification:

[Diagram should show a pie chart with appropriate labels for each sector representing students' favorite sports].

Data Relationship Explanation:

The mean is the average of the data set, calculated by dividing the sum of the values by the number of values. The median is the middle value when the data set is arranged in ascending order. The mode is the value that appears most frequently. Example: For the data set 2, 3, 3, 5, 7, the mean is 4, the median is 3, and the mode is 3.

Data Handling Class 7 Worksheet 3

Section A: Multiple Choice Questions (MCQs)

1. Which type of graph is used to show changes over time?

a) Line graph

b) Bar graph

c) Pie chart

d) Histogram

2. The average of a data set is also known as:

a) Median

b) Mode

c) Mean

d) Range

3. Which of the following is not a measure of central tendency?

a) Mean

b) Median

c) Mode

d) Range

4. Data that is collected from published sources is called:

a) Primary data

b) Secondary data

c) Raw data

d) Processed data

5. The difference between the highest and lowest values in a data set is called the:

a) Mean

b) Median

c) Mode

d) Range

Section B: True or False

1. A bar graph is used to compare different categories of data. (True/False)
2. The median is always a value in the data set. (True/False)
3. A line graph is useful for showing trends over time. (True/False)
4. The range is a measure of central tendency. (True/False)
5. A histogram is used to represent continuous data. (True/False)

Section C: Fill in the Blanks

A graph that uses lines to connect data points is called a __________.
The value that appears most frequently in a data set is called the __________.
The average of a data set is called the __________.
The process of collecting and organizing data is known as __________.
A circular graph divided into sectors is called a __________.

Data Handling Class 7 Worksheet 3 Answers

Section A: Multiple Choice Questions (MCQs)

1. = a) Line graph
2. = c) Mean
3. = d) Range
4. = b) Secondary data
5. = d) Range

Section B: True or False

• True
• False (The median is not always a value in the data set)
• True
• False (The range is a measure of spread)
• True

Section C: Fill in the Blanks

• Line graph
• Mode
• Mean
• Data handling
• Pie chart

Benefits of Solving Data Handling Class 7 Worksheet

1. Solving Tricky Questions: This worksheet helps students tackle difficult questions, improving their problem-solving abilities.
2. Increases Speed: Regular practice with this worksheet helps students solve problems faster and more efficiently.
3. Understanding Concepts: It offers clear explanations, ensuring students fully grasp the topics.
4. Revision Aid: The worksheet is great for reviewing and reinforcing knowledge of data handling.
5. Time Management: Consistent practice helps students manage their time better during exams.
6. Boosts Confidence: Frequent practice increases students' confidence in handling complex problems.
7. Identifies Weaknesses: The worksheet helps pinpoint areas where students need improvement, leading to better exam performance.
8. Enhances Logical Thinking: By solving various problems, students improve their logical thinking and critical problem-solving skills.

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