Normal distributions are a statistical concept that refers to the distribution pattern of data that follows a bell curve shape. There are many synonyms for normal distributions, including Gaussian distributions, bell curves, and normal curves. These curves are commonly used in statistical analysis to model random events and natural phenomena. The shape of the curve is determined by the mean and standard deviation of the data set, with the highest point of the curve representing the mean. Normal distributions are widely used in fields such as physics, finance, biology, and psychology, making it a fundamental concept to understand in many areas of study.