Normal Distribution - also known as the Gaussian distribution, is a continuous probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean. Normal distribution is graphically represented by a bell curve. It is also sometimes called as 'Natural Distribution' as it is found to be naturally occurring in many situations. E.g. height of people in a city, scores in a test etc.
An application oriented question on the topic along with responses can be seen below. The best answer was provided by Mohan PB on 15th January 2018.