What is normal distribution？

Normal distribution, also known as Gaussian distribution, is a probability distribution that is commonly used in statistics. It is a continuous probability distribution that is symmetric around the mean, with the majority of the data falling within one standard deviation of the mean. The distribution is bell-shaped, with the tails of the curve extending infinitely in both directions. Many natural phenomena, such as human height and IQ scores, follow a normal distribution. The normal distribution is characterized by two parameters: the mean (μ) and the standard deviation (σ).