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RS Aggarwal Class 9 Solutions Chapter-16 Presentation of Data in Tabular Form

RS Aggarwal Solutions

RS Aggarwal Class 9 Solutions Chapter-16 Presentation of Data in Tabular Form

Class 9 RS Aggarwal Chapter-16 Presentation of Data in Tabular Form Solutions - Free PDF Download

RS Aggarwal Solutions Class 9 Ch 16 is prepared for CBSE students so that they understand the concept related to the chapter tabular representation of data. The objective is to make the complex data simplified by putting it in a tabular format. By understanding and practising these statistical data, the scope of scoring higher marks in the examination gets enlarged. It comprises the chapter-wise questions and solutions to various types of sums provided in the Class 9 Maths Chapter 16. The quality study material is prepared under the guidance experts, teachers and mentors who contribute their knowledge and experience in designing the exercises. Students who are making preparation for their academic session should refer to RS Aggarwal Class 9 Maths Chapter 16 Solutions.

Download RS Aggarwal Textbook Solutions for Class 9 Maths from Vedantu, which are curated by master teachers. Also, revise and solve the important questions for the Class 9 Maths (RS Aggarwal) exam using the updated CBSE Solutions provided by us. Students can download NCERT Solutions for Class 9 Science created by the best Teachers at Vedantu for Free.

Statistics and its Characteristics According to RS Aggarwal Class 9 Chapter 16

Statistics is a discipline that is concerned with data collection, representation, analysis, organization, interpretation in a graphical format. It can be stated as a sub-branch of mathematics or science. The concept of statistics can be applied in different fields like industrial, economical, commercial, scientific, and social fields.

The primary characteristics of statistics explained in RS Aggarwal Class 9 Maths Ch 16 is:

The aggregate of numerical facts constitutes statistical data.
The statistical data are collected for a specific motive and may be used for other things.
All the statistical data and facts are collected in an organised way.
Different statistical data are subjected to comparison.
The representation of the statistical data has to be in numerical form.

Explain the Following Statistical Term Mentioned in RS Aggarwal Class 9 Maths Ch

Here is the definition of the following statistical terms explained in Class 9 Maths Chapter 16. taking any value in a given set depending upon probability distribution.

Class Interval - In a particular number distribution any numerical breadth of a class is termed as a class interval. Typically, class intervals are almost equal in breadth, but it may not be the same in every case.

Class Size - Class size denotes the average number of items in a specified class. It is calculated by dividing the total sum of items in a class divided by the total number of items in a class.

Class Mark - The classmark represents the midpoint of any class interval. It is computed by the average of the upper limit and lower limit in a given class interval.

Class Limit - There are mainly two class limits is a class. The lower class limit in a class is the smallest value of data present in a class. The upper-class limit in a class is the highest value of data present in a class.

True Class Limit - The true limit is obtained in frequency distribution format. In an inclusive class distribution, the upper limit of the preceding class is similar to the lower limit of the succeeding class.

In an exclusive class distribution, the upper limit of the preceding class is different from the lower limit of the succeeding class.

For example, 12-15, 16-19, 20-23, 24-27…

The true lower limit of class 12-15- is (-0.5)

The true upper limit of class 12-15- is (+0.5)

The true limit of class 12-15 is 11.5 and 15.5

Frequency of a Class- The frequency of a class represents the number of observation in each class. For example, if 8 people from the age group 10-15 are observed in statistical data, the frequency of class 10-15 interval is 8.

Cumulative Frequency of a Class- In a frequency distribution table, when each frequency is added to the sum total of its predecessor frequencies, it is known as the cumulative frequency of a class.

Exercise Questions in RS Aggarwal Solutions Class 9 Chapter 16

Question 1:

Range of Data

13, 45, 68, 96, 34, 65, 23, 33, 75, 8, 12

Sol: Range = Maximum Value- Minimum Valu

96-8

88.

Question 2:

Sol: The class mark of the class is 150-220

Class Mark = Upper Limit (U.L) + Lower Limit (L.L)/ 2

Class Mark = 220+150/ 2

Class Mark = 370/ 2

ClassMark = 185

Did You Know?

The idea about the numbers originated in middle east Asia. For counting the money, they used check prints, while for houses they used clothes. All these used to be spread across the tables for the counting process. This eventually gave rise to the concept of a tabular representation of data.

Benefits of RS Aggarwal Solutions

The uses of solutions for class 9 Maths are manifold. These solutions help students in their studies and this is how:

They enable the students to waste much time when they are confused and stuck on a problem.
They enable the students to understand their follies and pay attention to their mistakes.
These solutions are explained step-wise, thus helping the students to get an idea of the whole problem and its answer.
Solutions provide an in-depth understanding of the concepts and their meanings.
Going through the solutions during revisions can also be beneficial since they can help to make the ideas clear just before the exams.

FAQs on RS Aggarwal Class 9 Solutions Chapter-16 Presentation of Data in Tabular Form

1. What is the Tabular Representation of Data in RS Aggarwal Class 9 Chapter 16?

In NCERT Solutions for Class 9 Maths Chapter 16, we get acquainted with the concept of a tabular representation of data. It mainly deals with the statistical concepts of data that represent the aggregate of numerical figures that help the students to understand various things like collection, representation and analysis. It basically organizes the data in row and column format. Students can evaluate these figures to determine the statistical and logical conclusions from the representations. This mainly benefits when a chunk of data has to be shown that are easy to read, coordinate and are engaging in nature. Moreover, this statistical representation helps in the decision-making process.

2. Explain the Different Forms of Tabular Analysis seen in Statistical Data?

There are typically fours variations seen in statistical data of class 9 maths chapter 16.

Quantitative Classification

When data is classified based on attributes that represent the quantitative features of statistics. This type of analysis is done through both numerical and statistical methods.

Qualitative Classification

When data classification is focused on non-numeric traits such as nationality, social status, physical status, and others. It is not measured on quantitative terms.

Spatial Classification

When the data categorization is done through location basis like state, country, block, district, it is called spatial classification.

Temporal Classification

When data classification categorises variable and data based on time as a crucial factor, it is known as temporal classification. Time can be represented through the week, month, days, hours, etc.

3. Why is R S Aggarwal so important for Class 9 students?

R S Aggarwal Class 9 book has properly explained ideas, solved questions and unsolved questions which will aid in the student’s learning. The concepts in a chapter are explained in a descriptive manner, so that students don’t face any problems in understanding. It is very important that the students understand all the concepts, otherwise, it will be very difficult for them to proceed. The solved examples are there, by which students can understand the practical aspects of the concepts and how to approach a sum while solving. Then students can solve the unsolved question given in the exercise.

4. Why is R S Aggarwal Class 9 Chapter 16 - Tabular representation of Data important for exams?

Tabular representation of data is very essential in real life. It helps us understand the data given, the frequencies of the data and the other details at a glance. The representation of given data in tabular form benefits everyone who is working with it, as they can easily figure which data conforms to whom, and vice versa. By tabular representation, other information which has to be found out on the basis of the given ones can be taken out very easily.

5. Where can I get all the useful resources for studying Class 9 Maths?

All the useful resources for studying Class 9 Maths can be found on the Vedantu website or app. Vedantu has solution sets, revision notes, important questions, and everything else that is needed to score good marks in exams. All of this is available for free, so no worries! Students just have to visit the website or app and download the necessary notes. Following these notes will surely help students to get good marks in exams.