Question

what is probability​

Answer 1

Explanation:

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur.

Answer 2

$\bf Probability$

The chance of happening of an event may be described as one of the following: certain, likely, very likely, unlikely and impossible. The chance of happening of an event is called Probability of the event happening. Probability tells us how likely an event is going to occur. It does not tell us what is going to happen. We often make predictions about the chances of an event happening.

$\sf Probability = \sf \frac{Number \: of \: favourable \: outcomes }{Number \: of \: p ossible \: outcomes}$

There is an even chances of an event happening if the chance of an event happening is the same as the chance of the event not happening.

For example: if we toss a coin, then either head will come up or the tail will come up. Thus, there is an even chance of getting a head when a coin is tossed.

There is a good chance of an event happening if the event is more likely to happen than not to happen.

For example: if a student works hard, then it is a good chance that he will stand first in the annual examination.

There is a poor chance of an event happening if the event is less likely to happen than not to happen.

For example: it is poor chance that a cricket match played between India and Sri Lanka results in tie.

An impossible event has no chance to happen.

For example: It is impossible (no chance) to get 8, when a die is rolled.

Some events surely happen. These are called certain events.

For example: If we throw a ball upward, it will certainly return to the earth.

Thus, chance of happening an event can be shown on a scale with no chance at one end and certain at the other end.