Class 8 Maths Notes for Data Handling (PDF) – Study Material

Class 8 Maths Data Handling – Get here the Notes, Question & Practice Paper of Class 8 Maths for topic Data Handling Notes. Data Handling Notes for Class 8 Maths are here. You can download the Data Handling Notes PDF to study all the topics in this chapter. Moreover the Class 8 Maths notes include chapter summary, definitions, examples, and key pointers for Data Handling. Thus if you are studying class Maths (गणित), then the Data Handling notes will help you easily understand the topic and ace it.

Class 8 Maths Notes for Data Handling

Data Handling is a critical part in the study of Maths. In India, it is taught in class. Therefore the Class 8 Notes for Maths topic Data Handling have been compiled by teachers and field experts. They explain the complete chapter of Data Handling in one-shot.

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Data Handling Notes Download Link – Click Here to Download PDF

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Data Handling Notes for Class 8 Maths

Data Handling Class 8 notes is as follows. You can view the document here and also download it use it anytime for future reference whenever you want to brush up your concepts of Maths.

Chapter 4 – Data Handling

In your day-to-day life, you might have come across information, such as:

(a) Runs made by a batsman in the last 10 test matches.
(b) Number of wickets taken by a bowler in the last 10 ODIs.

The information collected in all such cases is called data. Data is usually collected in the context of a situation that we want to study

Usually, data available to us is in an unorganized form called raw data. To draw meaningful inferences, we need to organize the data systematically either in ascending or descending order or in grouped form

Thus, the frequency distribution table for the above data can be written as

FREQUENCY OF DATA: Occurrence of a observation in the data is called frequency of the observation
Here 7 students have opted Art here 5 students opted Maths here

Grouping Data: We put the data in Grouped form by making a group of 2,3,5 … as depends on the number of observations

ILLUSTRATION:

The following marks (out of 50) obtained in Mathematics by 60 students of Class VIII: 21, 10, 30, 22, 33, 5, 37, 12, 25, 42, 15, 39, 26, 32, 18, 27, 28, 19, 29, 35, 31, 24, 36, 18, 20, 38, 22, 44, 16, 24, 10, 27, 39, 28, 49, 29, 32, 23, 31, 21, 34, 22, 23, 36, 24, 36, 33, 47, 48, 50, 39, 20, 7, 16, 36, 45, 47, 30, 22, 17.

Note : Here in the above table in first class interval 0 – 10 there are number from 0 to 9 has occurred 2 times hen 2 is the frequency of the class 0 – 10

Limit of the Class Interval In the class interval 0 − 10 , 0 is called Lower limit and 10 is Upper limit

CLASS SIZE = UL – LL & CLASS MARK = (UL+LL)/2

Sometimes, data is represented graphically to give a clear idea of what it represents.

We have learnt different types of graphs in earlier classes: Pictograph, Bar graph

There are some more types of graphs like Histogram and Pie Chart

Histogram: A histogram is a diagram involving rectangles whose area is proportional to the frequency of a variable and width is equal to the class interval.

Illustration: Dr Rao‘s Garden with 30 black cherry trees. Each tree is of a different height. The height of the trees (in inches): 61, 63, 64, 66, 68, 69, 71, 71.5, 72, 72.5, 73, 73.5, 74, 74.5, 76, 76.2, 76.5, 77, 77.5, 78, 78.5, 79, 79.2, 80, 81, 82, 83, 84, 85, 87.

PIE DIAGRAM:- The “pie chart” is also known as a “circle chart”, dividing the circular statistical graphic into sectors or sections to illustrate the numerical problems. Each sector denotes a proportionate part of the whole.

This data is represented ias Pie chart or graph

Now to figure out how many degrees for each “pie slice” (correctly called a sector).

A Full Circle has 360 degrees, so we do this calculation:

CHANCE AND PROBABILITY: Sometimes it happens that during rainy season, you carry a raincoat every day and it does not rain for many days. However, by chance, one day you forget to take the raincoat and it rains heavily on that day.

Suppose a coin is tossed at random. When we speak of a coin, we assume it to be ‘fair‘(as being ‘unbiased’). By the phrase ‘random toss’, the coin can only land in one of two possible ways — either head up or tail up

We can reasonably assume that each outcome, head or tail, is as likely to occur as the other. We refer to this by saying that the outcomes head and tail, are equally likely. Similarly for Dice

Candidates who are ambitious to qualify the Class 8 with good score can check this article for Notes, Study Material, Practice Paper. Above we provided the link to access the Notes, Important Question and Practice Paper of Class 8 Maths for topic Data Handling.

All Topics Class 8 Maths Notes

Chapter wise notes for Maths (गणित) are given below.

• Rational Numbers
• Linear Equation in One Variable
• Understanding Quadrangles
• Data Handling
• Square and Square Roots
• Comparing Quantities
• Algebraic Expression and Identities
• Mensuration
• Exponents and Powers
• Direct and Inverse Proportions
• Factorisation
• Introduction to Graphs

Class 8 Notes for All Subjects

• Class 8 Maths Notes
• Class 8 Hindi Study Material (Important Questions)

NCERT Solutions for Class 8 Maths Data Handling

The Data Handling notes here help you solve the questions and answers. Also, you can complete the Class 8 Data Handling worksheet using the same. In addition you will also tackle CBSE Class 8 Maths Important Questions with these Class 8 notes.

However if you still need help, then you can use the NCERT Solutions for Class 8 Maths Data Handling to get all the answers. Data Handling solutions contain questions, answers, and steps to solve all questions.

Notes for All Classes

• Class 6 Notes
• Class 7 Notes
• Class 8 Notes
• Class 9 Notes
• Class 10 Notes
• Class 11 Notes
• Class 12 Notes

Data Handling Notes for Class 8 Maths – An Overview

Name of Topic	Data Handling
Class	8
Subject	Maths
All Class 8 Maths Notes	Class 8 Maths Notes
All Class 8 Notes	Class 8 Notes

Class 8 Data Handling Notes for All Boards

You can use the Class 8 Maths notes of Data Handling for all boards.

The education boards in India for which Data Handling notes are relevant are – CBSE, CISCE, AHSEC, CHSE Odisha, CGBSE, HBSE, HPBOSE, PUE Karnataka, MSBSHSE, PSEB, RBSE, TBSE, UPMSP, UBSE, BIEAP, BSEB, GBSHSE, GSEB, JAC, JKBOSE, KBPE, MBOSE, MBSE, MPBSE, NBSE, DGE TN, TSBIE, COHSEM, WBCHSE.

Therefore you can refer to these notes as CBSE, CISCE, AHSEC, CHSE Odisha, CGBSE, HBSE, HPBOSE, PUE Karnataka, MSBSHSE, PSEB, RBSE, TBSE, UPMSP, UBSE, BIEAP, BSEB, GBSHSE, GSEB, JAC, JKBOSE, KBPE, MBOSE, MBSE, MPBSE, NBSE, DGE TN, TSBIE, COHSEM, WBCHSE notes for class Class 8 / Class / Maths for the topic Data Handling.