Have you seen cricket matches on Television, or the ones played in your school? In a match the captain of both the teams are called and a coin is tossed to find out who gets a chance to choose to bat or bowl. Though the captains can wish for head or tail, they cannot control the outcome of the toss.

Such an experiment is called a **random experiment**. These circumstances when outcomes are possible yet we cannot control them are all around us. Can you spot any more like this?

Head or Tail are the two **outcomes **of this experiment.

Getting a head is one out of two outcomes, i.e., ½ . In other words, we say that the probability of getting a head

= 1 /2 .

Similarly, let us take the example of throwing a dice marked with 1, 2, 3, 4, 5, 6 on its faces

What are the outcomes when we roll the dice?

The outcomes are: 1, 2, 3, 4, 5, and 6.

Thus, there are six equally likely outcomes.

What is the probability of getting the outcome ‘2’?

It is 1,

Number of outcomes giving 2

There are 6 Number of equal likely outcomes.

**Example: **A bag has 5 blue balls and 3 orange balls. A ball is drawn from the bag without looking into the bag. What is probability of getting a blue ball? Is it more or less than getting an orange ball?

**Solution: **

There are in all (5 + 3 =) 8 outcomes of the event.

Getting a blue ball consists of 5 outcomes.

Therefore, the probability of getting a blue ball is 5

Number of blue balls = 5

Total number of balls = 8

Required probability is 5/8

In the same way the probability of getting a orange ball = 3

Number of red balls = 3

Total number of balls = 8

Required probability is 3/8

Therefore, the probability of getting a blue ball is more than that of getting an orange ball.