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Consider: What is "Normal Distribution" and why is it useful?
Normal distribution is important in many areas of study, including the social sciences. Normal distribution is a statistical concept that can be used to describe phenomena such as heights or weights. It was first formally described by an English mathematician named Abraham de Moivre around 1730.
Normal distribution is a bell-shaped curve that can be used to describe the likelihood of an event happening within a given range. It helps to determine, for example, how likely it is that someone's height will fall somewhere between two values.
The likelihood of a random variable falling within a specific range is referred to as its probability distribution. When a normal distribution can be used to describe the probability distribution, it is called an 'approximate' normal distribution.
The normal distribution has some useful mathematical properties that make it a good model for many phenomena. One of these is that the sum of two normally distributed variables is also normally distributed.
Another useful property is that the area under a normal curve can be determined by using integration. This enables many statistics to be calculated from values of normally distributed variables.
The normal distribution is also important because it can be used to approximate other more complicated distributions, such as the binomial distribution.