Class 9 Exam > Class 9 Notes > Mathematics (Maths) Class 9 > Facts that Matter: Statistics
Facts that Matter: Statistics | Mathematics (Maths) Class 9 PDF Download
- Three measures of central tendency of ungrouped data are: (i) mean, (ii) median and (iii) mode.
- The mean of ungrouped data is found by adding all the values of observation and dividing it by the total number of observations. It is denoted by
. - The median is the value of the middlemost observation.
- The mode is the most frequently occurring observation.
- If the number of observations ‘n’ is odd, then
Median = Value of theobservation. - If the number of observations ‘n’ is even, then
Median = Mean value of the and observations.
.
observation.
observations.Statistics
It is a branch of science which deals with the collection, presentation, analysis and interpretation of numerical data.
Data
Facts or numerical figures, collected with a definite purpose, are called data.
Ungrouped or Raw Data
The data obtained in original form are called raw data or ungrouped data.
Grouped Data
The data condensed into groups or classes are called grouped data.
Note:
I. The arrangement of raw numerical data in ascending or descending order of magnitude, is called an array.
II. The number of times an observation occurs in the given data is called the frequency of that observation.
The document Facts that Matter: Statistics | Mathematics (Maths) Class 9 is a part of the Class 9 Course Mathematics (Maths) Class 9.
All you need of Class 9 at this link: Class 9
|
44 videos|412 docs|54 tests
|
FAQs on Facts that Matter: Statistics - Mathematics (Maths) Class 9
| 1. What is the importance of statistics in Class 9? |  |
Ans. Statistics is important in Class 9 as it helps students understand and analyze numerical data, make informed decisions, and draw meaningful conclusions. It provides a foundation for various subjects and real-life applications such as economics, science, and social sciences.
| 2. What are the main topics covered in Class 9 statistics? | |
Ans. In Class 9 statistics, the main topics covered include data handling, representation of data in various forms such as tables and graphs, measures of central tendency (mean, median, mode), measures of dispersion (range, quartiles), probability, and basic concepts of inferential statistics.
| 3. How can statistics be applied in everyday life? | |
Ans. Statistics can be applied in everyday life in various ways. For example, it helps in analyzing survey results, making predictions based on data trends, understanding market research, interpreting medical research findings, and evaluating the impact of policies or interventions.
| 4. What are the benefits of studying statistics in Class 9? | |
Ans. Studying statistics in Class 9 offers several benefits. It improves critical thinking skills, enhances data interpretation abilities, promotes logical reasoning, and develops problem-solving skills. It also provides a foundation for higher-level statistics courses and prepares students for future academic and professional endeavors.
| 5. How can statistics help in decision-making? | |
Ans. Statistics plays a crucial role in decision-making by providing a systematic framework for analyzing data and making informed choices. It helps in evaluating options, assessing risks, and understanding the probability of outcomes. By using statistical techniques, decision-makers can minimize uncertainty and maximize the chances of successful outcomes.
About this Document
|
2.3K Views |
|
4.70/5 Rating |
|
Dec 22, 2024 Last updated |
Document Description: Facts that Matter: Statistics for Class 9 2024 is part of Mathematics (Maths) Class 9 preparation.
The notes and questions for Facts that Matter: Statistics have been prepared according to the Class 9 exam syllabus. Information about Facts that Matter: Statistics covers topics
like Statistics and Facts that Matter: Statistics Example, for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Facts that Matter: Statistics.
Introduction of Facts that Matter: Statistics in English is available as part of our Mathematics (Maths) Class 9
for Class 9 & Facts that Matter: Statistics in Hindi for Mathematics (Maths) Class 9 course.
Download more important topics related with notes, lectures and mock test series for Class 9
Exam by signing up for free. Class 9: Facts that Matter: Statistics | Mathematics (Maths) Class 9
Description
Full syllabus notes, lecture & questions for Facts that Matter: Statistics | Mathematics (Maths) Class 9 - Class 9 | Plus excerises question with solution to help you revise complete syllabus for Mathematics (Maths) Class 9 | Best notes, free PDF download
Information about Facts that Matter: Statistics
In this doc you can find the meaning of Facts that Matter: Statistics defined & explained in the simplest way possible. Besides explaining types of
Facts that Matter: Statistics theory, EduRev gives you an ample number of questions to practice Facts that Matter: Statistics tests, examples and also practice Class 9
tests
|
Explore Courses for Class 9 exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Important questions
,Facts that Matter: Statistics | Mathematics (Maths) Class 9
,past year papers
,Previous Year Questions with Solutions
,study material
,Sample Paper
,Extra Questions
,mock tests for examination
,Summary
,Facts that Matter: Statistics | Mathematics (Maths) Class 9
,Viva Questions
,shortcuts and tricks
,Facts that Matter: Statistics | Mathematics (Maths) Class 9
,Free
,ppt
,Exam
,Objective type Questions
,Semester Notes
,practice quizzes
,MCQs
,video lectures
;
Additional Information about Facts that Matter: Statistics for Class 9 Preparation
Facts that Matter: Statistics Free PDF Download
The Facts that Matter: Statistics is an invaluable resource that delves deep into the core of the Class 9 exam.
These study notes are curated by experts and cover all the essential topics and concepts, making your preparation more efficient and effective.
With the help of these notes, you can grasp complex subjects quickly, revise important points easily,
and reinforce your understanding of key concepts. The study notes are presented in a concise and easy-to-understand manner,
allowing you to optimize your learning process. Whether you're looking for best-recommended books, sample papers, study material,
or toppers' notes, this PDF has got you covered. Download the Facts that Matter: Statistics now and kickstart your journey towards success in the Class 9 exam.
Importance of Facts that Matter: Statistics
The importance of Facts that Matter: Statistics cannot be overstated, especially for Class 9 aspirants.
This document holds the key to success in the Class 9 exam.
It offers a detailed understanding of the concept, providing invaluable insights into the topic.
By knowing the concepts well in advance, students can plan their preparation effectively.
Utilize this indispensable guide for a well-rounded preparation and achieve your desired results.
Facts that Matter: Statistics Notes
Facts that Matter: Statistics Notes offer in-depth insights into the specific topic to help you master it with ease.
This comprehensive document covers all aspects related to Facts that Matter: Statistics.
It includes detailed information about the exam syllabus, recommended books, and study materials for a well-rounded preparation.
Practice papers and question papers enable you to assess your progress effectively.
Additionally, the paper analysis provides valuable tips for tackling the exam strategically.
Access to Toppers' notes gives you an edge in understanding complex concepts.
Whether you're a beginner or aiming for advanced proficiency, Facts that Matter: Statistics Notes on EduRev are your ultimate resource for success.
Facts that Matter: Statistics Class 9 Questions
The "Facts that Matter: Statistics Class 9 Questions" guide is a valuable resource for all aspiring students preparing for the
Class 9 exam. It focuses on providing a wide range of practice questions to help students gauge
their understanding of the exam topics. These questions cover the entire syllabus, ensuring comprehensive preparation.
The guide includes previous years' question papers for students to familiarize themselves with the exam's format and difficulty level.
Additionally, it offers subject-specific question banks, allowing students to focus on weak areas and improve their performance.
Study Facts that Matter: Statistics on the App
Students of Class 9 can study Facts that Matter: Statistics alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Facts that Matter: Statistics,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Facts that Matter: Statistics is prepared as per the latest Class 9 syllabus.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup