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## FAQs on Class 7 RS Aggarwal Chapter-23 Probability Solutions - Free PDF Download

**1. What is Probability?**

Probability is a measure of the possibility of an event to occur. Though for many events, probability cannot be predicted with full certainty, yet can predict the chance of an event to occur. The Probability can range anywhere in between 0 and 1, where 0 indicates no possibility of event occurrence and 1 indicates complete possibility of a certain event.

Ex. When we toss a coin, there is a possibility of getting either a Head(H) or Tail(T). But when we toss two coins in the air, there are three possibilities of event occurrences: (H, H), (H, T),(T, T).

**2. What is Empirical probability?**

The term Empirical probability, relative frequency, or experimental probability of an event refers to the ratio of the no. of outcomes in which a specified event occurs to the total no. of trials, not in a theoretical sample space but an actual experiment. The Empirical probability uses the no. of occurrences of an outcome within a sample set as a ground basis for determining the probability of that outcome. The no. of times "event X" happens out of hundred trials will be the probability of event X happening.

**3. What are the advantages of RS Aggarwal Maths Solutions of Class 7 Chapter 23?**

All the solutions are prepared by Maths experts of Vedantu, who hold experience of at least fifteen years.

Solutions come with easy and simple explanations so that students can understand the concepts clearly.

Each chapter includes explanations and practice questions.

The availability of free PDF makes it even easier for students to learn at their own pace.

Students who find this topic difficult, eventually start showing interest in this subject with Vedantu learning.

**4. What exactly are RS Aggarwal notes and how are they going to help with probability?**

RS Aggarwal notes are keys and solutions to exercises from textbooks that explain the solution in a simple, efficient and easy way that will help students to understand the concept of probability better than they would normally. These notes make you go deeper into the concept of probability and make you understand it in a way that is different from others and will help you to score well in your exams and tests.

**5. Why is it important to learn probability?**

Apart from being a concept that is easy to understand and also helps you score some easy marks in your exam, probability is a very useful concept in real life. So do not think that by studying probability you are wasting your time at all, instead think that you are investing your time in something that will give you good results now and even in the future. We use probability in our daily lives to make certain decisions when we don't know for sure what the certain outcome will be. We perform probability actions in our daily lives without even realising it. This chapter helps us understand that thought process and takes us deeper into the concept.

**6. How is RS Aggarwal going to help me?**

We talked about it earlier, RS Aggarwal notes are pretty useful and resourceful when it comes to solutions to textbook exercises and problems. So there is that but apart from that, there is also the point that you need to take under consideration that these notes save a lot of your time by explaining new solutions in a simple and self-explanatory way that won't require assistance from any teacher or any other outside source. RS Aggarwal notes, once downloaded will always be there with you with easy accessibility and there will be no confusion because everything is pretty much organised.

**7. How much importance does probability hold in examinations?**

The importance that probability holds in examinations and tests is much more than you might like to think. Even though they are easy to solve and give conclusions to, the sums are usually very lengthy and that is the reason even after their simplicity these sums hold a lot of marks in your examinations. And because of this reason studying probability will never go to waste and in turn only help you to succeed in your examination as well as make real-life decisions with the knowledge of what you are doing.

**8. How much time do I need to give to learn this concept perfectly?**

Learning this concept shouldn't be that hard, as all the sums and exercises overlap each other in one way or the other. There is an interconnection between all of the sums and similarity between all of the exercises so studying this chapter wouldn't consume a lot of your time and yet you will learn it pretty nicely. With the help of RS Aggarwal notes available on Vedantu you will be able to ace this concept without fretting over it for a long time.