Common Parametric Distributions

Free SOA Exam P (Probability) lesson in Univariate Random Variables. 14 min read, ~2,127 words.

Exponential: memoryless, mean =, variance =, CDF =. Uniform: constant density, mean =, variance =. Normal: symmetric bell, fully specified by and, closed under linear combinations. Gamma: sum of exponentials (same scale), mean =. Pareto: heavy tail, limited expected value has a closed form with exponent.

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