Class 10 Maths Chapter 13 Statistics Exercise 13.3 NCERT Solutions

Exercise 13.3 of  Class 10 Maths Chapter 13, Statistics, focuses on finding the middle value of grouped data, which gives a better idea of the central tendency when values are unevenly distributed.

The exercise introduces the concept of cumulative frequency and shows how it is used to locate the median class, which is an important concept in the  CBSE Class 10 Maths syllabus.

These NCERT Solutions help you understand not just the steps, but also when and why the median is used. This makes it easier to handle similar questions in the board exam.

NCERT Solutions for Class 10 Maths Chapter 13 Exercise 13.3

1. The following frequency distribution gives the monthly consumption of electricity of 68 consumers of a locality. Find the median, mean and mode of the data and compare them.

Answer:

2. If the median of the distribution given below is 28.5, then find the values of x and y.

Answer:

3. A life insurance agent found the following data for distribution of ages of 100 policy holders. Calculate the median age, if policies are only given to persons having age 18 years onwards but less than 60 years.

Answer:

4. The lengths of 40 leaves of a plant are measured correct to the nearest millimeter and data obtained is represented in the following table. Find the median length of the leaves.

Answer:

How to Score Better in Class 10 Maths Exam?

Scoring well in Class 10 Maths requires clear concepts, regular practice, and a focus on accuracy and answer presentation. To score better, you should:

• Build Strong Concepts:

Focus on understanding concepts in Class 10 Maths instead of memorising steps, as this helps in solving application-based questions.

• Work on Weak Areas:

Focus on difficult topics from the Class 10 Maths syllabus instead of skipping them to avoid losing marks.

• Revise Formulas Daily:

Regular revision of PW Class 10 Maths MIQs helps avoid calculation mistakes in exams.

• Practise Regularly:

Solve all CBSE Class 10 NCERT questions multiple times to strengthen your basics and improve accuracy.

• Solve Previous Year Papers:

Practising class 10 Maths previous year questions (PYQs) helps you understand question patterns and important topics.