## RS Aggarwal Class 7 Chapter 21 Solutions: Free PDF Download

## FAQs on RS Aggarwal Solution For Class 7 Maths Chapter 21 Collection and Organisation of Data - Free PDF Download

**1. Define the following terms: Data, Raw Data, Array, Tabulation of Data, Observation, Frequency of an observation, Statistics?**

**Data:****Raw Data:**It is the data obtained in the original form.**Array:**It is the arrangement of the numerical figures of data in either ascending or descending order.**Tabulation of Data:**It is the arrangement of the data systematically in tabular form.**Observation:**It refers to each numerical figure in the data.**Frequency of an Observation:**It is the number of times a particular observation occurs.**Statistics:**It is the subject that talks about the collection, presentation, analysis, and interpretation of numerical data.

**2. What are the advantages of RS Aggarwal Maths Solutions of Class 7 Chapter 21?**

All the solutions are prepared by Maths experts of Vedantu, who hold experience of at least fifteen years.

Solutions come with easy and simple explanations so that students can understand the concepts clearly.

Each chapter includes explanations and practice questions.

Availability of free PDF makes it even easier for the students to learn at their own pace.

**3. What does RS Aggarwal Class 7 Chapter 21 Solution free pdf contain?**

RS Aggarwal Class 7 Chapter 21 free pdf contain many solutions to problems that are considered hard in this chapter. The solutions in the pdf are explained in such a way that the student will learn them pretty well and in a fun way that doesn't drain them. These solutions are also self-explanatory and self-sufficient so you don't need the help of any outside source to understand them. Going through this material will help students understand concepts deeper and how to approach questions based on these concepts.

**4. How can I access RS Aggarwal Class 7 Chapter 21 Solutions free pdf? **

Vedantu helps you to easily access RS Aggarwal Class 7 Chapter 21 solutions. You just have to visit Vedantu’s official website, find these notes and download them. It's a simple process and won't require any outside assistance or even a lot of time. You can do it on your own whenever you want to and on any device you want. Once downloaded, accessing them through your device without the need for the internet is also smooth. If you misplace it, repeating the same process and downloading the PDF again would restore it.

**5. What is meant by mean, median and mode?**

Mean, median and mode are three ways of giving average values of a list of numbers. As we continue to study in further classes, we learn that there are different subtypes of means and there are also more uses of these three topics than what we initially learned. These are helpful concepts that you might find useful in many parts of life and you can apply them for easy accessibility.

**6. Is it important to learn these topics in Class 7?**

Apart from all the applications of these concepts in real life, this chapter holds a lot of importance in examinations and hence when you know this chapter, your marks will improve and you will also be able to solve other chapters because this one is interrelated to many of them in small ways which will ultimately save your time during examinations, tests and other times when you need them.

**7. How much time should I allocate to learning this chapter?**

This is a versatile chapter so you don't have an average time or ideal time that you should allot to this chapter, but you can take as much time as you want with it as you can give it. As it will be a one-time learning process, once you understand this chapter, you won't need to revise it again and again, so it's good in exchange for all the time you'll be putting into it. Do not worry, as learning, with the help of RS Aggarwal notes will not be that hard or time-consuming. You will pass through it seamlessly while enjoying learning.