Definition Of Impossible Event

An event that has no chance of occurring is called an Impossible Event.

More About Impossible Event

The probability of an impossible event is always zero (0).

Video Examples: iCoachMath Works
 

Example of Impossible Event

The probability of getting a number greater than 6, when a die is thrown once, is an impossible event, as the highest number in a die is 6.

Solved Example on Impossible Event

Ques: A bag contains 5 red balls and 3 green balls. If a ball is chosen at random from the bag, then which of the following is an impossible event? 

Choices:

A. Choosing a red ball
B. Choosing a yellow ball
C. Choosing a green ball
D. None of these
Correct Answer: B

Solution:

Step 1: An event that has no chance of occurring is called an Impossible event.
Step 2: Since the bag does not contain any yellow ball, it is impossible to choose a yellow ball.
Step 3: So, choosing a yellow ball is an impossible event.

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