Exponential distribution

Notes

The probability density function for exponential distribution is:

.. math::

f(x, \lambda) = \lambda\exp(-\lambda x)

for :math:x \ge 0, :math:\lambda > 0.

The cumulative distribution function is:

.. math::

F(x, \lambda) = 1 - \exp(-\lambda x)

The following plot shows the pdf.

.. image:: ../../../../tests/imgs/stats/continuous/expon/exponpdf.png :align: center :width: 480