# NCERT Solutions Class 11 Maths Chapter 15 Statistics

NCERT solutions for class 11 maths chapter 15 statistics is a lesson that kids have encountered throughout their school career in different ways. Statistics deals with data collected for specific purposes. We can make decisions about the data by analyzing and interpreting it. Kids have already been introduced to methods of representing data graphically and in tabular form. Along with that, they have also studied the various measures of central tendency such as arithmetic mean, median, and mode. In the NCERT solutions class 11 maths chapter 15 children are now educated on how the data collected is scattered or how much it is bunched around a measure of central tendency. Statistics is one of the most widely used topics in the financial and economic industries for planning as well as forecasting. They help in framing mathematical models and conducting time series analysis.

Class 11 maths NCERT solutions chapter 15 is not only an important lesson for examinations but is also required by students in class 12^{th}. The concepts that are presented in this chapter will be used as the building bricks for the introduction of more complicated topics as kids progress through their educational journey. Hence, children should make it a point to be well-versed with the formulas and theories of Statistics as these will inevitably make their way into the future board exams. NCERT Solutions Chapter 15 Statistics uses various practical examples to deliver an impactful lesson thus, ensuring that students of all intelligence quotas can instill a crystal clear statistical foundation and also download the exercise-wise solutions provided in the links below.

- NCERT Solutions Class 11 Maths Chapter 15 Ex 15.1
- NCERT Solutions Class 11 Maths Chapter 15 Ex 15.2
- NCERT Solutions Class 11 Maths Chapter 15 Ex 15.3
- NCERT Solutions Class 11 Maths Chapter 15 Miscellaneous Ex

## NCERT Solutions for Class 11 Maths Chapter 15 PDF

In the NCERT solutions class 11 maths kids take a deeper look at the various statistical measures such as mean deviation, standard deviation, and variance of grouped, as well as ungrouped data. There are a number of formulas that have been outlined in this chapter for finding the values of the above-stated concepts. This is an immaculately crafted lesson that combines the basics of statistics with higher-level topics. Given below are the links to all the exercise-wise solutions to all NCERT textbook questions.

**☛** Download Class 11 Maths NCERT Solutions Chapter 15 Statistics

**NCERT Class 11 Maths Chapter 15 **

### NCERT Solutions for Class 11 Maths Chapter 15 Statistics

As this lesson will be seen further in a child’s educational career it is imperative for her to periodically revise the solutions so as to recall the concepts immediately when required. These solutions come with tips and tricks that can help to streamline the studying process thus, students should keep a lookout for the same. The detailed analysis of NCERT Solutions Class 11 Maths Chapter 15 statistics is given below.

- Class 11 Maths Chapter 15 Ex 15.1 - 12 Questions
- Class 11 Maths Chapter 15 Ex 15.2 - 10 Questions
- Class 11 Maths Chapter 15 Ex 15.3 - 5 Questions
- Class 11 Maths Chapter 15 Miscellaneous Ex - 7 Questions

☛ Download Class 11 Maths Chapter 15 NCERT Book

**Topics Covered:** Measures of dispersions, mean deviation, and variance of grouped as well as ungrouped data, are the topics under class 11 maths NCERT solutions chapter 15. Other sections also include variance and standard deviation of discrete as well as continuous frequency distribution and coefficient of variation.

**Total Questions:** Class 11 maths chapter 15 Statistics has 34 questions in total out of which 14 are straightforward, 15 are slightly difficult while 5 are complex higher-order thinking sums.

## List of Formulas in NCERT Solutions Class 11 Maths Chapter 15

NCERT solutions class 11 maths chapter 15 are based on formulas as well as a child’s ability to understand what the question is asking. Formulas can be seen as an easy way of solving an otherwise difficult sum. Statistics not only call for the use of formulas but also help in enhancing a child’s calculation skills. Students are advised to make formula charts as well as solve all sums by hand as this can increase the speed and accuracy in performing calculations that can be vital while appearing for exams. Given below are some of the formulas used in this chapter.

- Range = Maximum Value – Minimum Value.
- Mean deviation for ungrouped data: x̅ = ∑|x
_{i}- x̅| / n - Mean deviation for grouped data: x̅ = ∑|x
_{i}x̅| / N; N = ∑f_{i} - Variance for ungrouped data: σ
^{2}= ∑(x_{i}- x̅)^{2}/ n - Variance for grouped data: σ
^{2}= ∑f_{i}(x_{i}- x̅)^{2}/ N

## FAQs on NCERT Solutions Class 11 Maths Chapter 15

### Why are NCERT Solutions Class 11 Maths Chapter 15 Important?

NCERT Solutions Class 11 Maths Chapter 15 has been prepared by mathematical experts who are geniuses in their field. The solutions have been explained in a step-wise and detailed manner that can be understood by all students. Kids not only get an idea of how to clearly present their answers in examinations but are also able to clear their concepts making these solutions a very important source of learning.

### Do I Need to Practice all Questions Provided in NCERT Solutions Class 11 Maths Statistics?

The key to being successful in the NCERT Solutions Class 11 Maths Statistics is constant practice. Students are required to memorize several formulas and perform lengthy calculations. If a child makes a silly mistake while going through these steps then the entire sum will be marked incorrect. Hence, kids need to regularly revise these solutions to brush up on their skills.

### What are the Important Topics Covered in NCERT Solutions Class 11 Maths Chapter 15?

All the topics covered in NCERT Solutions Class 11 Maths Chapter 15 are equally important. Each exercise targets a different subject matter. The easier questions help kids build their foundation and memorize formulas while the tougher ones aid in harnessing up their mathematical acumen. Additionally, this lesson will be further used in class 12. Thus, children should not skip any section.

### How Many Questions are there in NCERT Solutions Class 11 Maths Chapter 15 Statistics?

There are 34 sums in the NCERT Solutions Class 11 Maths Chapter 15 Statistics that are divided into 3 exercises and one miscellaneous exercise. These questions give a 360-degree view to kids of the entire chapter and have been curated by math experts. They range from easy formula-based questions to complicated word problems.

### What are the Important Formulas in NCERT Solutions Class 11 Maths Chapter 15?

The formulas in NCERT Solutions Class 11 Maths Chapter 15 that are based on calculating the mean, variance, and standard deviation of different types of data are vital. As there are a lot of formulas that need to be learned children should proceed through them in a step-wise manner as well as note them down in their formula sheet.

### How CBSE Students can utilize NCERT Solutions Class 11 Maths Chapter 15 effectively?

To effectively utilize NCERT Solutions Class 11 Maths Chapter 15 the most important point is to understand the derivations of all the formulas outlined before the exercises. Kids should also recall all the concepts that they have learned in Statistics in previous classes. Additionally, they should also understand the theory. Once they are comfortable with these three tools they can proceed to solve the exercise questions.