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
- IntegersÂ 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.

**Download Customised White Label Study Materials in MS Word Format**

We are providing teaching resources to teachers and coaching institute looking for * customised study materials* in MS word format. Our High-quality editable study material which is prepared by the expert faculties are Highly useful for Teachers, Mentors, Tutors, Faculties, Coaching Institutes, Coaching Experts, Tuition Centers.

### Frequently Asked Questions (FAQs) on Data Handling Case Study

#### Q1: What is data handling?

A1: Data handling refers to the process of collecting, organizing, representing, and interpreting data to make it meaningful and useful. It involves various methods and tools to analyze data and draw conclusions.

#### Q2: What is a bar graph, and how is it used in data handling?

A2: A bar graph is a visual representation of data using rectangular bars of equal width. The length of each bar corresponds to the value or frequency of the data. Bar graphs are used to compare different categories of data, making it easier to understand and interpret information.

#### Q3: How do you construct a bar graph?

A3: To construct a bar graph, follow these steps:Draw two perpendicular lines (axes), one horizontal (x-axis) and one vertical (y-axis).

Label the x-axis with the categories of data and the y-axis with the frequency or value.

Choose an appropriate scale for the y-axis.

Draw bars for each category, with heights corresponding to their respective values.

Ensure the bars are of equal width and are spaced evenly.

#### Q4: What is a histogram, and how is it different from a bar graph?

A4: A histogram is a type of bar graph that represents the frequency distribution of continuous data. Unlike a bar graph, which represents categorical data, a histogram’s bars are adjacent (without gaps) and represent intervals of data. The height of each bar indicates the frequency of data within each interval.

#### Q5: What is mean, and how is it calculated?

A5: The mean, or average, is a measure of central tendency that represents the sum of all data values divided by the number of data values.

#### Q6: **What is median, and how is it determined?**

A6: The median is the middle value of a data set when the values are arranged in ascending or descending order. If there is an odd number of data values, the median is the middle value. If there is an even number of data values, the median is the average of the two middle values.

#### Q7: **What is mode, and how is it identified?**

A7: The mode is the value that appears most frequently in a data set. A data set can have more than one mode if multiple values appear with the same highest frequency, and it can also have no mode if all values appear with the same frequency. For example, in the data set 2, 4, 4, 5, 7, the mode is 4.

#### Q8: What is the importance of data handling in everyday life?

A8: Data handling is important because it helps us make informed decisions based on collected data. Whether it’s understanding trends, comparing different options, or analyzing information, data handling provides a structured way to organize and interpret data in various fields like education, business, healthcare, and more.

#### Q9: **Are there any online resources or tools available for practicing comparing quantities case study questions?**

A9: We provide case study questions for CBSE Class 8 Maths on ourÂ website. Students can visit the website and practice sufficient case study questions and prepare for their exams. If you need more case study questions, then you can visitÂ Physics GurukulÂ website. they are having a large collection of case study questions for all classes.