## NCERT Solutions for Maths Class 10 Chapter 13 Statistics Exercise 13.2 - FREE PDF Download

NCERT Solutions for Class 10 Maths Chapter 13 - Statistics Exercise 13.2

## FAQs on NCERT Solutions for Class 10 Maths Chapter 13 - Statistics Exercise 13.2

1. What is statistics according to NCERT Solutions for Class 10 Maths Chapter 13 Exercise 13.2?

Statistics is considered as a subject which is concerned with collection, organisation, analysis, interpretation and presentation of data. Statistics is used in different fields for data analysis purposes. People who are using statistics for data analysis and interpretation must have some technical and cognitive skills to achieve maximum success in his/her work. The government uses statistics in the census and for calculating or measuring different indicators that affect the economy of the country — indicators such as unemployment, stock market, etc. Statistics is not an easy task. One needs a lot of experience to complete it in an efficient and productive way according to NCERT Solutions for Class 10 Maths Chapter 13 Exercise 13.2.

2. How much time do students need to complete NCERT Solutions for Class 10 Maths Chapter 13 Exercise 13.2?

Providing at least one hour completely to the Maths Class 10 Chapter 13 Exercise 13.2 would be enough for the student to complete and understand the concepts. But, it is also to be remembered that continuous practice would help the student attain the desired results. Therefore it is advisable that the student come back to the exercise time and again and practice the numericals to get a better hold of the concepts. To make the studying process easier, the students can refer to the NCERT Solutions which they can easily download from the website of Vedantu.

3. What is ungrouped data according to Maths Class 10 Chapter 13 Exercise 13.2?

Data that is usually represented in its original or raw form and where the observations are not classified into groups is called ungrouped data. In Maths Class 10 Chapter 13 Exercise 13.2, for instance if the teacher of a kindergarten writes down the ages of her students in the following manner, then it gets called an ungrouped data

5, 3, 4, 3, 5, 4, 4, 3, 4, 4, 3, 3, 3, 4, 3, 27 .

It is easier to analyse and work upon ungrouped data if the set is small and limited. But it becomes a hassle if the set is in a larger quantity.

4. What is the direct method of finding the mean in Maths Class 10 Chapter 13 Exercise 13.2 ?

To find the mean through the direct method, the following steps are to be considered

The first step includes the classification of the data into intervals in addition to finding the corresponding frequency of each class.

The next step includes the finding of the classmark by considering and taking into account the midpoint of the upper-class limits and the lower class limits.

The third step includes the grouping and tabulating of the product of the class mark and its corresponding frequency for each class. Their sum is also to be calculated.

The last step involves dividing the acquired sum by the sum of the frequencies in order to attain the mean.

5. How to find the mean using the assumed mean method from Maths Class 10 Chapter 13 Exercise 13.2 ?

To find the mean using the assumed mean method, the following steps are to be taken into account:

The first step involves the classification of the data into intervals and finding out the corresponding frequency of each class.

The next step includes the finding of the classmark by considering the midpoints of the upper-class limits and the lower class limits.

The third step involves considering one of the ‘s as the assumed mean.

The next one needs to find out the derivation of “a” from each of the xi.

di=xi-a′

The final step involves finding out the mean of the deviations and calculate the mean

6. Are the NCERT Solutions available for Class 10 Maths Chapter 13 Statistics Exercise 13.2?

Yes, the NCERT Solutions are easily feasible for Class 10 Maths Chapter 13 Statistics Exercise 13.2 and can be downloaded from the Vedantu website or from the Vedantu app at free of cost. These solutions are devised by experts keeping in mind the needs and requirements of the students. Every exercise that these solutions contain have detailed and explained answers that make the learning process smoother and simpler for the students. With the regular and adequate practice of these exercises, the student will be able to solve any question that gets asked from this chapter.

7. What is the mode of grouped data and how is it calculated in Class 10 Maths Chapter 13 Statistics Exercise 13.2?

From Class 10 Maths Chapter 13 Statistics Exercise 13.2, the mode of grouped data is the value that appears most frequently within a data set. In Exercise 13.2, it is calculated using the formula Mode = $L+\left ( \frac{f_{1}-f_{0}}{2f_{1}-f_{0}-f_{2}} \right )\times h$, where L is the lower limit of the modal class, $f_{1}$ is the frequency of the modal class, $f_{0}$ is the frequency of the class before the modal class, $f_{2}$ is the frequency of the class after the modal class, and h is the class width.

8. Why is finding the mode of grouped data important in Class 10 Maths Chapter 13 Exercise 13.2 Solutions?

Finding the mode of grouped data is important because it helps identify the most frequent occurrence in a dataset, which can be useful in various real-life applications such as market research, quality control, and social sciences from Class 10 Maths Chapter 13 Exercise 13.2 Solutions. It provides insights into the central tendency of the data.

9. What are the key steps to solve problems in Class 10 Maths Chapter 13 Exercise 13.2 Solutions?

The key steps to solve problems in Class 10 Maths Chapter 13 Exercise 13.2 Solutions include identifying the modal class from the frequency distribution table, applying the formula for mode, and performing the necessary calculations to find the mode. It is essential to accurately determine the class intervals and frequencies for correct results.

10. How do Vedantu's solutions help in understanding NCERT Class 10 Maths Chapter 13 Exercise 13.2?

Vedantu's solutions provide step-by-step explanations for each problem in NCERT Class 10 Maths Chapter 13 Exercise 13.2, making it easier for students to understand the process of finding the mode of grouped data. The clear and detailed approach helps students grasp the concepts and apply them effectively in their exams.

11. What common mistakes should be avoided while calculating the mode in NCERT Class 10 Maths Chapter 13 Exercise 13.2?

Common mistakes to avoid in NCERT Class 10 Maths Chapter 13 Exercise 13.2 which include incorrectly identifying the modal class, miscalculating the class width, and making errors in applying the mode formula. Paying close attention to the frequency distribution table and carefully following the steps in the formula can help prevent these errors.