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# NCERT Solutions for Class 8 Maths Chapter 4 Exercise 4.2 Data Handling - PDF Download

The NCERT solutions for class 8 maths chapter 4 ex 4.2 Data Handling provide a method of calculating the probability of occurrences of given events. In mathematics, this chance of occurrence is referred to as Probability. Students will explore terms such as 'random experiment', 'event' and 'equally likely outcomes' and explore probability theory. Ex 4.2 class 8 maths chapter 4 is composed of 6 questions, each of which is based on the topics of chance and probability.

Students should review the topic multiple times to gain an in-depth understanding of the theory of chance and probability. Additionally, they should focus on all diagrams and tables provided in the topic. In other words, the NCERT solutions to this exercise cover all the questions mentioned in the exercise 4.2 and more, which are completely based on the likely outcomes of an event and highly relevant in real life. eSaral’s subject experts ensure that the questions presented in ex 4.2 are answered in the simplest manner possible. NCERT solutions for class 8 maths can help students in preparing for their examination and also in verifying the answers given to the questions. NCERT solutions free PDF is available on eSaral for download to enhance your exam scores. You can download these PDFs from the eSaral website.

## Topics Covered in Exercise 4.2 Class 8 Mathematics Questions

Before solving exercise 4.2 in NCERT solutions, students should take a look at the topics under Chance & Probability. All the topics of ex 4.2 are elaborated here for your reference.

 1 Chance and Probability Getting a result Equally likely outcomes Linking chances to probability Outcomes as events Chance and probability related to real life
1. Chance and Probability

Probability indicates the degree of uncertainty. It is a measure of the probability of an event occurring.

• Getting a result - When an experiment is conducted, the possible outcomes of the random experiment are referred to as outcomes. Ex. When we flip a coin, there are two possible outcomes: head or tail.

• Equally likely outcomes - If all outcomes have the same possibility of occurrence, they are referred to as Equally likely outcomes. Ex. when conducting the random experiment, if we throw a dice, there is an equal probability for every no to appear, i.e., a single dice has the same chance of obtaining 1,2,3,4,5 and 6.

Probability = Number of outcomes that make an event /Total number of outcomes of the experiment

• Outcomes as events - Each outcome or set of outcomes obtained from an experiment is referred to as an event.

Probability = event/number of outcomes

• Chance and probability related to real life

The use of probability is made in various cases in real life.

1. To find characteristics of a large group by using a small part of the group.

2. The Meteorological Department predicts weather by observing trends from the data over many years in the past.

## Tips for Solving Exercise 4.2 Class 8 Chapter 4 Data Handling

You will have a better understanding of ex 4.2 class 8 maths solutions, if you follow the tips provided by our subject experts of eSaral.

1. You must comprehend the concept of chance and probability to solve questions of ex 4.2.

2. It is essential for students to thoroughly study all topics and sub-topics in this section, as the concepts of chance and probability have been elucidated through the utilization of real-life events or scenarios in the NCERT solutions offered by eSaral.

3. NCERT class 8 maths ex 4.2 explains the concept of probability in a straightforward way. Before starting, students should solve the examples provided in these solutions. Doing this will help them understand their errors and the questions they're having trouble with.

## Importance of Solving Ex 4.2 Class 8 Maths Chapter 4 Data Handling

Below are a few benefits of solving questions of class 8 maths chapter 4 ex 4.2:

1. Our experienced maths teachers have thoroughly prepared the NCERT solutions for the topics of chance and probability for better comprehension of this exercise.

2. All the questions in ex 4.2 are solved with an easy to understand method. Students can get the solutions to all the important questions from eSaral.

3. NCERT solutions PDF are also available on eSaral. You can download the PDF for future reference.

4. For ex 4.2 class 8 maths chapter 4, eSaral provides accurate and reliable NCERT solutions designed by academic experts with years of experience.

Question 1. Write the formula to find the probability of an event?

Answer 1. Formula to find the probability of an event is as follows.

Probability of an event = Number of outcomes that make an event / Total number of outcomes of the experiment

when the outcomes are equally likely.

Question 2. Is NCERT solution class 8 maths chapter 4 ex 4.2 available in PDF format?

Answer 2. Students in class 8 are able to access the NCERT solution class 8 maths ex 4.2 in PDF format provided by eSaral. This exercise can also be referred to offline mode once downloaded.