Data Handling Class 7 Case Study Questions Maths Chapter 3

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Last Updated on August 17, 2024 by XAM CONTENT

Hello students, we are providing case study questions for class 7 maths. Case study questions are the new question format that is introduced in CBSE board. The resources for case study questions are very less. So, to help students we have created chapterwise case study questions for class 7 maths. In this article, you will find case study questions for CBSE Class 7 Maths Chapter 3 Data Handling. It is a part of Case Study Questions for CBSE Class 7 Maths Series.

Chapter	Data Handling
Type of Questions	Case Study Questions
Nature of Questions	Competency Based Questions
Board	CBSE
Class	7
Subject	Maths
Useful for	Class 7 Studying Students
Answers provided	Yes
Difficulty level	Mentioned
Important Link	Class 7 Maths Chapterwise Case Study

Case Study Questions on Data Handling

Questions

Passage 1:

Q.1. In which games the number of existing active users is more than 1.5 million?
(a) KC
(b) RJ
(c) CM
(d) CR

Sol. Option (a) is correct.

Q. 2. It has been observed that $50 \%$ of the new RJ game users play online with friends?
(a) 1.39 million
(b) 4.975 million
(c) 8.195 million
(d) 9.95 million

Sol. Option (c) is correct.
Explanation: ($50 \%$ of 1.99 million $=0.995$ million and $36 \%$ of 20 million $=7.2$ million $0.995+7.2=$ 8.195 million)

Q. 3. Mary played 10 HC matches. She scored 45, 36, 50, $27,36,52,50,43,50$ and 47 points in them. What is the most frequent score point?
(a) 27
(b) 36
(c) 47
(d) 50

Sol. Option (d) is correct.

Q. 4. Are the mean and median of Mary’s scores equal? Justify your answer.

Sol. Mean score is 43.6
$$
\begin{aligned}
43.6= & (45+36+50+27+36 \\
& +52+50+43+50+47) \\
& \div 10 \text { median score is } 46 .
\end{aligned}
$$

Ascending order of scores

$$
\begin{aligned}
& =(27,36,36,43,45,47,50,50,50,52) \\
(45+47) \div 2 & =46 \\
46 & \neq 43.6
\end{aligned}
$$

Also check

• Visualizing Solid Shapes Class 7 Case Study Questions Maths Chapter 13
• Symmetry Class 7 Case Study Questions Maths Chapter 12
• Exponents and Powers Class 7 Case Study Questions Maths Chapter 11
• Algebraic Expressions Class 7 Case Study Questions Maths Chapter 10
• Perimeter and Area Class 7 Case Study Questions Maths Chapter 9
• Rational Numbers Class 7 Case Study Questions Maths Chapter 8
• Comparing Quantities Class 7 Case Study Questions Maths Chapter 7
• Triangle and its Properties Class 7 Case Study Questions Maths Chapter 6
• Lines and Angles Class 7 Case Study Questions Maths Chapter 5
• Simple Equations Class 7 Case Study Questions Maths Chapter 4
• Data Handling Class 7 Case Study Questions Maths Chapter 3
• Fractions and Decimals Class 7 Case Study Questions Maths Chapter 2
• Integers Class 7 Case Study Questions Maths Chapter 1

Topics from which case study questions may be asked

• Representative Values
• Arithmetic Mean
• Range
• Mode
• Median
• Bar Graphs

Case study questions from the above given topic may be asked.

• Collection of information in numerical figures is called Data. The data obtained initially is called Raw-data. Arranging numerical figures of the data in ascending or descending order is called an array.
• The difference between highest and lowest value of observation in a set of data is called the Range.
• The number of times a particular observation occurs is called its frequency.
• Mean is the sum of all the values, divided by the total number of values.
• Median is the ‘middle value’ of a list when the data in the list is sorted in increasing or decreasing order.
• Mode is a value which occurs most frequently in a collection of data.
• A bargraph is a form of graphical representation of data. It shows quantity of data according to length of bars which are of inform width with equal spacing.

Different forms of data need different forms of representative or central value to describe them. The most common of them
are arithmetic mean, mode and median.

Frequently Asked Questions (FAQs) on Data Handling Case Study