NCERT Class 10 Math Chapter 13: सांख्यिकी PDF Download

NCERT Class 10 Math Chapter 13 सांख्यिकी (Statistics) is all about collecting, organising, and interpreting numerical data. This chapter teaches students how to calculate measures of central tendency like mean, median, and mode using different methods such as direct, assumed mean, and step deviation. It also covers cumulative frequency and graphical representation through ogives. The

NCERT Class 10 Math Chapter 13 सांख्यिकी (Statistics) is all about collecting, organising, and interpreting numerical data. This chapter teaches students how to calculate measures of central tendency like mean, median, and mode using different methods such as direct, assumed mean, and step deviation. It also covers cumulative frequency and graphical representation through ogives. The chapter has high importance because questions from this section are asked regularly in board exams and are considered to be scoring if students practise well.

I chose to write about this chapter because statistics is not just a part of exams but also something we encounter daily. From analysing cricket scores to understanding survey data, statistical tools are everywhere. Many students think it is difficult at first, but once they understand the calculation methods, it becomes one of the easiest and most interesting chapters. NCERT explains concepts with solved examples, and the exercises are designed in a step-by-step way. This makes it easy for students to practise and strengthen their command. By downloading the NCERT PDF, learners can revise formulas, practise problems, and prepare effectively for the Class 10 board exams.

Key Concepts in Chapter 13 सांख्यिकी

The important topics covered are:

Mean (Direct method, Assumed mean method, Step deviation method)
Median (using cumulative frequency distribution)
Mode (using histogram and formula)
Graphical representation of cumulative frequency (Ogives)

Example Problem

The marks obtained by 100 students in an exam are grouped in a frequency table. Students may be asked to calculate mean using the assumed mean method or to draw ogives to find the median. These problems build practical understanding of how data is analysed.

Download PDF

Students can download NCERT Class 10 Math Chapter 13: सांख्यिकी PDF directly from this website.

NCERT Class 10 Math Chapter 14: प्रायिकता PDF Download

NCERT Class 10 Math Chapter 14 प्रायिकता (Probability) introduces students to the concept of chance and likelihood of events. In this chapter, students learn how to calculate the probability of simple events using the formula P(E) = Number of favourable outcomes ÷ Total number of outcomes. The chapter deals with real-life examples like tossing a

NCERT Class 10 Math Chapter 14 प्रायिकता (Probability) introduces students to the concept of chance and likelihood of events. In this chapter, students learn how to calculate the probability of simple events using the formula P(E) = Number of favourable outcomes ÷ Total number of outcomes. The chapter deals with real-life examples like tossing a coin, rolling a dice, or drawing cards, which makes the subject more interesting and practical. Since probability questions are common in board exams and are generally considered easy, this chapter is highly important for scoring well.

I am writing about this topic because probability is not only an important part of the Class 10 syllabus but also a concept that students will use in higher studies and real life. From predicting weather conditions to calculating risks in business, probability plays a key role. Many students initially find it confusing, but NCERT presents it in a simple and easy-to-understand manner. By practising from the NCERT book, students can build a strong foundation and develop confidence in solving probability problems. Having the PDF makes it easier for learners to access the chapter anytime, revise formulas, and attempt practice questions before exams.