**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.

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!

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