# Statistics Class 10 Notes

CBSE Class 10 statistics notes are comprehensive notes which cover the latest syllabus of CBSE and NCERT. The statistics notes are well-prepared to help students learn the topics, concepts, and problems covered in each chapter. Thanks to these valuable notes, students don’t have to worry about buying different books to prepare during the test period. Every important formula and concept presented in the chapter is covered in the revision notes.

Quick revision notes are available to you if you need an overview of a chapter. These notes will undoubtedly save you time on those hectic exam days. The revision notes for class 10 statistics help you revise the whole chapter quickly. The major benefit of the Statistics Class 10 Notes is that they go over the key ideas and illustrate diagrams with real-world situations, which motivates pupils to do well on tests.

Below, we’ve included a brief overview of the CBSE Notes for Class 10, which concisely cover each chapter’s major topics.

**Overview of CBSE Class 10 Statistics Revision Notes**

Statistics is a branch of mathematics that studies extracting meaningful information from the provided data. Statistics is used to infer collected data in addition to involving the collection, organisation, analysis, and interpretation of data. It aids in deriving significant conclusions from the data and in using those conclusions to make wise judgments. So let’s examine these class 10 statistics notes in more detail.

- Although dividing the data into grouped frequency tables is briefly described in statistics up to the 10th level, class 10 statistics notes clearly explain how to measure the central tendency.
- The value that best captures the traits of the complete dataset, taking into account each and every value in the collection of data, is known as the central tendency. The Mean, Median, and Mode are the three central tendency measurements. These measures of central tendency are defined in the Class 10 Statistics notes.
- In addition to learning about important concepts in the chapters, students may efficiently get prepared for exams. By downloading the Statistics Notes for Class 10 PDF, students may quickly become familiar with the chapters.
- These are the Statistics class 10 notes that a team of knowledgeable professors has created. You may quickly review the whole chapter using the revision notes. Revising notes on exam days is one of the finest strategies advised by professors.
- It includes all the topics given in NCERT class 10 Mathematics textbook.
- With the help of these notes, students will be able to gain an understanding of the chapters, making them excellent study tools.
- Each subject has been covered in-depth by experts to guarantee that students fully comprehend the material.
- The class 10 statistics notes are accessible in PDF format, allowing students to review them whenever they want and wherever they feel most comfortable.
- Numerous details are included in the Class 10 Statistics chapters that students may only fully understand after reviewing the chapters once more. Statistics Notes include examples, tables, and graphs for a better understanding of students. The Class 10 Statistics notes are useful in this situation.
- With the help of these notes, students will be able to gain an understanding of the chapters, making them excellent study tools.

**CBSE Class 10 Chapter-wise Statistics Notes**

The Mean, Median, and Mode are the three central tendency measurements. These measures of central tendency are defined as follows in the Class 10 Statistics notes.

- The mean of a data set is the product of the total number of observations divided by the total number of observations.
- The observation with the highest frequency is the mode of collection of data.
- The value that reflects the centre observation in a set of data is called the median.

**Revision Notes of Statistics Class 10**

- In this, we will discuss important statistical concepts, such as grouped data, ungrouped data and the measures of central tendencies like mean, median and mode, methods to find the mean, median and mode, and the relationship between them with more examples.
- The gathering, categorisation, and representation of any type of data are topics covered in the mathematical field of statistics to facilitate analysis and comprehension.
- Bar graphs, pie charts, histograms, and frequency polygons are only a few of the several types of data representations covered in the class 10 statistics course of the CBSE curriculum.
- The calculation of central tendencies of ungrouped random data is also covered in the Class 10 Statistics Notes. However, calculating the central tendency of grouped data is thoroughly illustrated in the Statistics Class 10 explanation.
- Class 10 statistics notes cover three measures of central tendency Mean, Median, and Mode.
- Mean: The mean of a data set is the product of the total number of observations divided by the total number of observations. It is the average of “n” numbers, which is calculated by dividing the sum of all the numbers by n.
- Mode: The observation with the highest frequency is the mode of collection of data. The number which appears most frequently in the series then it is said to be the mode of n numbers.
- Median: The value that reflects the centre observation in a data set is called the median. If we arrange the numbers in an ascending or descending order, then the middle number in the series will be the median. The median is the average of the two middle numbers if the series number is even. The Median is defined as the measure of central tendency, which obtains the value of the middlemost observation in the data.
- Ungrouped data: Ungrouped data is data in its original or raw form. The observations are not classified into groups.
- Grouped data: In grouped data, observations are organised in groups. For example, a class of students got different marks in a school exam.
- Frequency: Frequency is the number of times a particular observation occurs in data. For example, if four students scored between 90 and 100, then the marks scored between 90 and 100 have a frequency of 4.
- Class Interval Data can be grouped into class intervals so that all observations in that range belong to that class. Class width = upper class limit – lower class limit
- Class 10 Notes: Statistics Notes cover Mean, Median, Mode, and Empirical relationship between mean, median, and mode.
- The Mean of a given data set can be found by three different methods, namely: Direct Method, Assumed mean method, and Step Deviation Method.
- Empirical formula statistics class 10: It gives the relationship between the three measures of central tendency. The empirical formula is written as 3 Median = Mode 2 Mean. This formula can be used to measure the values of other central tendencies; two measures of central tendency are known.
- The median can be used as a measure of central tendency in Class 10 Statistics explanation issues if the individual values of each observation are insignificant.
- Mean of grouped data: The first step in calculating the mean of grouped data is to identify the midpoint (also known as a class mark) of each interval or class. The frequencies of the relevant classes must then be multiplied by these midpoints. The mean value is determined by dividing the total number of values by the sum of the products.
- Mean of Grouped Data With Class-Interval: There are three ways to determine the mean when the data is classified into class intervals. These are Direct Method, Assumed mean method, and Step Deviation Method.
- Direct Method: In this method, a midpoint that reflects the whole class is used. The term for it is the class mark. The top limit and lower limit are averaged to produce it.
- Method of Deviation or Assumed Mean: We may use this strategy to simplify our computations if we need to compute huge numbers. In this approach, we pick one of the x’s and use it as the assumed mean, or “a.” The deviation is then calculated as the difference between the expected mean and each x. The rest of the procedure is identical to the direct procedure.
- Step Deviation Method: To simplify our computations, we divide the values of d in this technique by a number “h”.
- Median of Grouped Data: Finding the cumulative frequency and n/2 will help us determine the median of a set of grouped data. The next step is to identify the median class, which is the category for cumulative frequencies that are close to or larger than n/2.
- Mode of grouped data: The value of the observation with the highest frequency is known as the mode of the, which is the value among the observations that happen most frequently.
- Distribution of cumulative frequencies of less than type: The number of observations that are less than or equal to a specific observation is shown by the cumulative frequency of the less than type.
- Distribution of cumulative frequencies for more than type: The number of observations greater than or equal to a certain observation is shown by the cumulative frequency of the more than type.

**Benefits of Revising 10th Science Notes **

Understanding the subjects and getting high marks on the board examinations depend greatly on revision. It is crucial to have revision notes for each chapter while reviewing, especially in areas like statistics, where there are several formulae and information. The following are some of the most significant advantages of the CBSE class 10 statistics notes:

- To fully understand the topics covered in the chapter and increase confidence, students must use these statistics class 10 notes while preparing for the exam.

- The revision notes are prepared based on the CBSE curriculum and as per NCERT guidelines. It covers almost all the Statistics concepts and formulas so that you will not have to refer to other additional books.
- Students can use these notes to help with last-minute preparation. The notes are given in their most condensed and focused form.
- Because of the clear and simple language, students can quickly remember the ideas and concepts discussed in each chapter.
- These NCERT statistics notes for class 10 equip students to respond to any kind of inquiry, whether subjective or objective.
- To help students quickly learn all of the ideas and concepts, class 10 statistics notes include diagrams, flowcharts, and bullet points.
- Class 10 Statistics notes are available in a PDF format that helps students to revise the notes anytime and at any place as per their comfort.

- Class 10 Statistics notes include all facts and formulas that are important for the students to solve the question given in the chapter quickly and conveniently.
- When studying for tests and having to swiftly review the entire syllabus, statistics notes help students quickly and easily retain all the previously acquired elements from the chapter.
- Class 10 notes assist students in becoming comfortable with the subjects and recognising the chapter’s main ideas.
- The activities of referring to many sources of study information for chapter preparation during revision are reduced by class 10 statistics notes.
- One of the best strategies for swiftly reviewing subjects before an exam is to take notes. Statistics Notes helps you to revise formulas and essential concepts before an exam in a quick way so that you do not forget them during the exam.

Our class 10 statistics notes will facilitate quick material review and help students do well on their coming examinations.

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