Bell curve (Gaussian distribution)

The Bell curve, or Gaussian distribution, is a statistical way to show how data points are spread out around an average value. Imagine many people taking a test: most scores will cluster near the middle, with fewer scoring very high or very low. When you plot these scores, they form a symmetrical, bell-shaped curve. This pattern indicates that most occurrences are close to the average, while extreme values are less common. The Bell curve helps us understand variability in data, whether it's heights, test scores, or measurement errors, providing a useful tool for analyzing natural patterns.