NCERT Solutions for Class 10 Maths Chapter 14: The CBSE Maths chapter 14 is Statistics. In this chapter, students will learn about mean of grouped data, mode of grouped data, median of grouped data, graphical representation of cumulative frequency distribution. The NCERT Solutions for Class 10 Maths chapter 14 will help students practice the in-text questions given in the textbooks and check their progress. This will help them remember the formulas and improve problem-solving speed and accuracy.
Statistics is an important chapter that will help the students score well in every competitive exams as well. NCERT Solutions for Class 10 Maths Chapter 14 PDF is available for free download. Students are advised to solve all the questions multiple times and work on their weaknesses. Scroll down to download the CBSE NCERT Solutions for Class 10 Maths Chapter 14.
CBSENCERT Solutions for Class 10 Maths Chapter 14: Overview
Before getting into the details of the Class 10 Maths NCERT solutions for Statistics chapter, let us first have an overview of the topics and sub-topics included in this chapter:
Mean of Grouped Data
Mode of Grouped Data
Median of Grouped Data
Graphical Representation of Cumulative Frequency Distribution
NCERT Solutions for Class 10 Maths Chapter 14 Statistics PDF
Students can download the NCERT solutions to practice problems of Class 10 Maths Chapter 14 – Statistics in offline mode also, from the below link:
CBSE NCERT Solutions for Class 10 Maths Chapter 14.1
Q.1. A survey was conducted by a group of students as a part of their environment awareness program, in which they collected the following data regarding the number of plants in 20 houses in a locality. Find the mean number of plants per house.
Which method did you use for finding the mean, and why? Solution: First of all, we have to find class marks xi for each interval. We know that, class mark(xi)=upper classlimit + lower classlimit2 Now we may compute xi and fixi as following Number of plants Number of houses fi xi fixi
From the table, we can see that Σfi=20 Σfixi=162 Mean x-=ΣfixiΣfi =16220=8.1 Hence, mean number of plants per house is 8.1. Direct method is used here as values of class marks xi and fi are small.
Q.2. Consider the following distribution of daily wages of 50 workers of a factory.
Find the mean daily wages of the workers of the factory by using an appropriate method.
Solution: We will use step deviation method. First, we have to find class mark for each interval. We know that, xi=upper classlimit+lower classlimit2 Class size (h) of this data =20. Let us take 550 as assumed mean (a). Now, we can calculate di,ui and fiui as following:
Daily wages (in₹) Number of workers fi xi di=xi-550 ui=xi-550h fiui
From the table, we can see that, Σfi=50 Σfixi=-12 Mean x-=a+ΣfiuiΣfih =550+-125020 =550-245 =550-4.8 =545.2 So, mean daily wages of the workers of the factory is ₹545.20
NCERT Solutions for Class 10 Maths Chapter 14: Chapter Description
In this chapter, students will learn about Statistics– the branch of mathematics that deals with data collection, organisation, analysis, interpretation, and presentation.
The statistical analysis covers all aspects of data collection, including data collection design, survey design, and experiment design. While applying Statistics to a scientific, industrial or social problem, it is conventional to begin with a statistical population or a statistical model.
Two main statistical methods used in data analysis are descriptive statistics, which summarise data from a sample using indexes such as mean or standard deviation, and inferential statistics, which conclude data that are subject to random variation (e.g., observational errors, sampling variation).
Practice All CBSE Class 10 Exercise Questions with Hints & Solutions Here!
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FAQs on CBSE NCERT Solutions for Class 10 Maths Chapter 14
Q1. What topics do I have to read in Chapter 14 Statistics of Class 10 Maths?
Ans. students will have to read the following topics in Class 10 Maths Chapter 14 Statistics. 1. Introduction to Statistics 2. Methods for calculating the mean of grouped data 3. Methods for the calculation of mode of grouped data 4. Methods for calculating the median of grouped data 5. Graphical representation of cumulative frequency distribution
Q2. How many exercises are covered under Class 10 Maths Chapter 14?
Ans. There are five exercises in Chapter 14 for CBSE Class 10 Maths with one summary exercise. So, in total, there are six exercises.
Q3. Will CBSE NCERT Solutions for Class 10 Maths Chapter 14 help me score good marks in exams?
Ans. Referring to the Class 10 Maths NCERT Solutions of Chapter 14 will help students gain a better understanding of the concepts in this chapter. This will, in turn, help them score higher in the board exams.
Q4. Are the CBSE NCERT Solutions for Class 10 Maths Chapter 14 available online?
Ans. Yes, students can download NCERT Solutions for Class 10 Maths Chapter 14 in PDF format from this page.
Q5. Why should students study from NCERT Solutions by Embibe?
Ans. The NCERT Solutions provided by Embibe are created by top experts to help students score good marks in their exams. The solutions also help students clear their doubts and develop a conceptual understanding of all the topics.
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