# CBSE Class 10 Statistics Notes PDF Download

Safalta expert Published by: Yashaswi More Updated Thu, 05 May 2022 10:33 PM IST

## Highlights

Check out detailed notes of the statistics chapter from CBSE Class 10 Math syllabus in PDF Format here at Safalta.com

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Chapter notes play a crucial role in understanding the concepts and securing good grades in the board exams. To have a revision, it is important to have revision notes of each chapter especially in subjects like Mathematics, as it contains different formulas and facts. To ease your preparation, we are presenting Class 10 Math Chapter 14 notes on this page in PDF format. Class 10 Maths Statistics notes provided by us includes all facts and formulas that are important for the students to solve the question given in the chapter quickly and conveniently. Join Safalta School Online and prepare for Board Exams under the guidance of our expert faculty. Our online school aims to help students prepare for Board Exams by ensuring that students have conceptual clarity in all the subjects and are able to score their maximum in the exams.

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Source: Safalta.com

Revision Notes Class 10 Math Chapter 14 : Introduction To statistics

2. A quick overview of Class 10 Math Chapter 14
3. List of the topics and subtopics covered in CBSE Class 10 Math Chapter 14
4. Class 10 Chapter 14 Notes benefits

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### Revision Notes Class 10 Maths Chapter 14: Introduction to Statistics

Class 10 Chapter 14 Maths notes are prepared by the subject experience teachers at Safalta. It includes all statistical concepts like grouped data, ungrouped data, measures of central tendency like mean, median, mode, methods to find mean, median, and mode, and the relationship between them, along with the important facts and formulae that are important to have a proper understanding of the chapter.

To have a quick overview of the important concepts of the chapter before the exams, download Class 10 Chapter 14 Maths notes free PDF through the link given here.

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### A Quick Overview of Class 10 Maths Chapter 14

In Class 10 Maths Chapter 14, students will learn the three measures of central tendency that are mean, median, and mode from ungrouped data to that of grouped data. Students will also understand the concepts of cumulative frequency, the cumulative frequency distribution, and how to draw cumulative frequency known as ogives.

Check>>>Class 10 CBSE Math Preparation Tips: Check These Tips To Ensure Full Marks

### Mean of Grouped Data

The mean of the observation is the sum of all the values given in the observations divided by the total number of observations.

If y₁,y₂, y₃, y₄...yₙ are observation with respective frequencies f1, f2, f3, f4, ….,fn

Then, the mean of the yof the data is given by:

y¯y¯
=
f1y1,f2y2,f3y3,f4y4,+.....+ynf1,f2,f3,f4,....fnf1y1,f2y2,f3y3,f4y4,+.....+ynf1,f2,f3,f4,....fn

### Mode of Grouped Data

The mode of the is that value among the observations which occurs most frequently and is also defined as the value of the observation having a maximum frequency.

### Median of Grouped Data

Median is defined as the measure of central tendency which obtains the value of the middlemost observation in the data.

If n is odd, then the median is the

(n+12)th(n+12)th
term of the observations.

If n is even, then the median is defined as the average of the

(n2)th(n2)th
and the
(n+12)th(n+12)th
term of the observations.

To check the preparation tips for scoring maximum marks in CBSE class 10 Social Studies Board Exam, click here.

### List of the Topics and Subtopics Covered in Class 10 Maths Chapter 14

14.1:  Introduction

14.2:  Mean of Grouped Data

14.3:  Mode of Grouped Data

14.4:  Median of Grouped Data

14.5:  Graphical Representation of Cumulative Frequency Distribution

To have a detailed understanding of all the above topics discussed above, download Class 10 Maths Statistics Notes free PDF now. To download the full notes for this chapter, check out the table below and click the link to download-

Related Story>>> CBSE TERM-2 Sample papers released for class 12 2022

### Class 10 Math Chapter Statistics Notes Benefits-

The following are some of the advantages of using Class 10 Maths Chapter Statistics notes:

1. The notes for Class 10 Maths Chapter Statistics are 100 percent correct because they were written by specialists after comprehensive research on the themes.

2. The Class 10 Maths Statistics notes are available in PDF format, allowing students to review them whenever and wherever they want.

3. Students can use the Class 10 Maths Chapter 14 notes to rapidly recall all of the previously acquired ideas in the chapter, which is especially useful during exams when they have to revise the entire curriculum in a short amount of time.

Also check>>CBSE Term-2 Class 10 Social Science Syllabus 2022

### How many methods are there in statistics class 10?

There are three methods to find mean

## What does l mean in statistics?

linear
In statistics, an L-statistic is a statistic (function of a data set) that is a linear combination of order statistics; the "L" is for "linear". These are more often referred to by narrower terms according to use, namely: L-estimator, using L-statistics as estimators for parameters

## What is the formula of mean for class 10 statistics?

Mean of a set of observations is the average of the given observations. To find the mean, we divide the sum of the observations by the total number of observations.

## What are 3 methods to find mean?

There are three methods to find the mean for grouped data, depending on the size of the data.
They are:
• Direct Method.
• Assumed Mean Method.
• Step-deviation Method

## How is student Mark calculated?

Now, find the sum of fi separately and fixi . Mean is given by Mean=∑fixi∑fi .
...
Class Marks Frequency ( fi) Midpoint(xi)
60-70 10 65
70-80 8 75
80-90 5 85
90-100 2 95

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