Question

Define probability of an event.will you?

Answer 1

Answer:

Probability of an event =favourable outcomes /total number of outcomes

Step-by-step explanation:

For example you have a bag which consist 3 green balls and 2 black balls. so probability of getting black ball will be 2/5 where 2 is the favourable outcome and 5 is the total number of outcome. Pls mark as branliest. Hope it helps

Answer 2

When an experiment is performed, we set up a sample space of all possible outcomes.

In a sample of N equally likely outcomes we assign a chance (or weight) of \displaystyle\frac{1}{{N}}  

N

1

​  

 to each outcome.

We define the probability of an event for such a sample as follows:

The probability of an event E is defined as the number of outcomes favourable to E divided by the total number of equally likely outcomes in the sample space S of the experiment.

That is:

\displaystyle{P}{\left({E}\right)}=\frac{{{n}{\left({E}\right)}}}{{{n}{\left({S}\right)}}}P(E)=  

n(S)

n(E)

​  

 

where

\displaystyle{n}{\left({E}\right)}n(E) is the number of outcomes favourable to E and

\displaystyle{n}{\left({S}\right)}n(S) is the total number of equally likely outcomes in the sample space S of the experiment.