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  "body": "\n## Summary\n\nThe normal distribution with mean $\\mu$ and variance $\\sigma^2$ is the continuous distribution on $\\mathbb{R}$ with the bell-shaped density $\\frac{1}{\\sqrt{2\\pi\\sigma^2}} e^{-(x-\\mu)^2/(2\\sigma^2)}$.\nBy the central limit theorem, it is the approximate law of a sum of many small independent effects. The node [[normal distribution|07RXBVTVZB]] gives the precise definition.\n",
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