Definition: [crh] The well known bell shaped curve. According to the Central Limit Theorem, the probability density functionDefinition: A> of a large number of independent, identically distributed random numbers will approach the normal distribution. In the fractal family of disDefinition: tributions, the normal distribution only exists when alpha equals 2, or the Hurst exponent equals 0.50. Thus, the normal distribution isDefinition: a special case which in time series analysis is quite rare. See: Alpha, Central Limit Theorem, Definition: Fractal Distribution.
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