Class 7 Chapter 18: Probability

Class 7 Chapter 18: Probability

Important Concepts and Formulas

1.      Probability is a branch of mathematics that deals with the chance of occurrence of an   event.

2.      There are three different situations that we come across in our daily life. They may be
             ·        sure to happen
             ·        impossible to happen
             ·        having some chances of happening.

3.      The random experiment is a process in which the result cannot be predicted with certainty.

4.      The sample space of an event is the list of all possible outcomes of an event.

5.      The collection of outcomes is called an event.

6.      The probability of an event E is denoted by P(E) and defined as follows:
7.      The probability of a sure event is always 1 and the probability of an impossible event is   always 0.

        To know more about probability ------- Click Here!    

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