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

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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.

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