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We use a bell curve to showcase the distribution of scores in the form of a graph. The term "bell curve" originates from the fact that the graph looks like a symmetrical bell-shaped curve. In a bell curve, the peak represents the most probable event in the dataset.
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Canada Gazette, Part 1, Volume 156, Number 44: Regulations Amending the Output-Based Pricing System Regulations and the Environmental Violations Administrative Monetary Penalties Regulations