RD Sharma Class 9 Chapter 22 Solutions (Tabular Representation of Statistical Data)
RD Sharma Class 9 Maths Solutions Chapter 22 has two exercises that are based on tally marks, range, classmark, and class limit. Statistics, however, is a bit confusing when it comes to a graphical representation, but this segment includes only tabular representation which is comparatively easy. Statistics help us to arrange, evaluate and analyze the raw data. It is useful in making decisions based on figures and graphs. So after completing your NCERT textbook, you should practice from other reference books to get a good grasp of ‘Tabular Representation of Statistical Data’. At Instasolv, we offer complete RD Sharma Class 9 Maths Solutions of Chapter 22 to the students to all the questions that are present in the book.
There are 2 exercises in total. As you start with the first exercise of RD Sharma Class 9 Maths Solutions Chapter 22, you will find questions based on the class limit and class mark. In total, there are 23 questions in exercise 22.1. Here you will get ample questions so that you don’t have to look for other books to gather more questions for practising. Practice them enough to ensure that you are well versed and do not have confusion. In exercises 22.2, there are 9 questions that are having varied topics covered, starting from cumulative frequency and moving onto tally marks.
Statistics is quite a scoring chapter, so it is better to invest your time in practising this from RD Sharma Class 9 Maths Solutions Chapter 22. It can help you compensate with those tough chapters that you are weak at. With RD Sharma Class 9 Maths Solutions Chapter 22 by Instasolv, you can help yourself with the stepwise answers that are compiled by our experts. RD Sharma Class 9 Maths Solutions Chapter 22 by Instasolv is a smart way to clear the doubts instantly.
Important topics for RD Sharma Class 9 Maths Solutions Chapter 22 Tabular Representation of Statistical Data
- The data is grouped to bring out the results from it. The raw data that we get in the question does not convey any information, whereas the answer does.
- The formula for classmark is.
- In a class limit, the figures on the left side are called a lower limit, and those on the right side are called the upper limit.
- If the class limit is non-continuous (inclusive), then you have to make it continuous (exclusive) by subtracting 0.5 from the lower limit and adding 0.5 to the upper limit.
- To find out the range, you have to arrange the data in ascending order and find the difference of highest and lowest entity.
- Class size= upper limit –lower limit.
- To find the class limit, you have to subtract the class size from the class mark to get the lower limit and add the class size to the class mark to get the upper limit.
- Tally mark table is also called a frequency distribution table.
Exercise discussing for RD Sharma Class 9 Maths Solutions Chapter 22 Tabular Representation of Statistical Data
- The first exercise has 23 questions.
- First, 5 questions are based on definitions and explanations of the terms that are often used in the chapter.
- RD Sharma Class 9 Maths Solutions Chapter 22 has given easy explanations that are simple to understand. Here you will find a short definition of statistics, primary data, secondary data, and raw data. You are also provided with relevant examples below the explanation to make it simple and better to understand.
- In the second question, you can see four fundamental characteristics of statistics and its importance. Though it is not a theoretical subject, it is crucial to know its basics.
- In question 7, you also have to find out the cumulative amounts in ascending order.
- In question 8, there are five parts. Firstly, you have to arrange the inclusive class limit into the exclusive class limit, and then you have to use the class size formula.
- In the upcoming questions, the classmark has to be found. Class.
- From 14th to 20th questions, tally marks are to be found. For each frequency, one ‘I’ has to be marked. For every fifth tally mark, the ‘ IIII’ sign has to be used and not ‘IIIII’.
- All these questions are similar and straightforward to do. You just have to be careful that you do not miss any frequency from the raw data. In the next column, you have to write the number of frequencies in numerals and mention the total frequency at the end. In most questions, the total frequency would be given so avoid copying the same. It’s better to count it yourself and then check it.
- In the second exercise, there are 9 questions in total.
- First, few questions are based on cumulative frequency. For this, you have to write the first frequency as it is and then add the preceding frequency in each frequency. The last value will always be equal to the sum total of all the observations.
- From question 8th onwards, the calculation part increases. The questions are not as direct as they were.
- In the upcoming questions, you have to find out the frequency by subtracting the value of the preceding frequency.
- The last three questions of the second exercise are similar. In each of them, you have to find out the frequency. Here you have to set the class intervals accordingly in an exclusive or continuous manner and then move on to find out the frequency. In each question, you have to copy the first frequency without any alterations, and for the upcoming ones, you have to subtract the preceding frequency.
Benefits of RD Sharma Class 9 Maths Solutions Chapter 22 Tabular Representation of statistical Data by Instasolv
RD Sharma Solutions Class 9 Maths Solutions Chapter 22 by Instasolv is an array of the easiest and straightforward answers that are solved stepwise. Students and teachers both can access these.
- Instasolv has provided the solutions that are carefully solved by our experts so that there are no mistakes.
- RD Sharma Class 9 Maths Solutions Chapter 22 by Instasolv has enough questions that are piled in the ascending order of difficulty. This will help you to gain expertise question by question.
- You can refer to these solutions for checking the methods that you used. You do not need any teacher to find out your mistakes.
- With so many questions to practice from RD Sharma Class 9 Maths Solutions Chapter 22 by Instasolv, you can score well in your exams.