NumPy RandomLesson 27Free preview

Exponential Distribution

This lesson is part of NumPy · All levels

Summary

The exponential distribution describes the waiting time between events that occur continuously at a constant average rate. Examples are generally the interval between customer arrivals or the age of the component before failure.

Key points

With a scale equal to 1 / the rate of occurrence.
The shape is tilted to the right with a long tail on the positive side.
The value is always non-negative because it models time/distance.
The mean and the standard deviation are both equal to the scale.

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