Log Normal Statistical Distribution
- Log Normal distribution is also referred to as Gibrat distribution, Galton’s distribution, McAlister distribution or Cobb-Douglas distribution.
- A positive variable X is Log-Normally distributed if its Logarithm is normally distributed.
Range of values:
0 < x < ∞
Mean = e ^ (location + (spread /2))
Standard Deviation, SD:
SD = √[(e^((2location) + spread)) * ((e^(spread)) – 1)]
Log Normal distributions can be used to calculate the time required to complete a task.
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Log Normal Statistical Distribution – Statistical Distributions
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