# How large a number makes a normal distribution?

*label*Statistics

*timer*Asked: Dec 28th, 2018

**Question description**

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This video explains the normal distribution via the binomial distribution: The distribution of the number of heads thrown on 20 coins approximates the normal. This is used to explain that the normal distribution is the mathematical consequence of adding up a large number of random events. Some examples are given of normal distributions in the natural world (mass of ants) and social world (age of marathon runners) and explained in terms of these phenomena resulting from the aggregation of random events.

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How large a number makes a normal distribution?