All Poisson distributions are right skewed. The mean, \(\mu\), and the standard deviation, \(\sigma\), of a Poisson random variable with the parameter \(\lambda\) are
\[ \mu = \lambda\] and \[ \sigma = \sqrt{\lambda}\text{.}\]
Citation
The E-Learning project SOGA-R was developed at the Department of Earth Sciences by Kai Hartmann, Joachim Krois and Annette Rudolph. You can reach us via mail by soga[at]zedat.fu-berlin.de.
Please cite as follow: Hartmann, K., Krois, J., Rudolph, A. (2023): Statistics and Geodata Analysis using R (SOGA-R). Department of Earth Sciences, Freie Universitaet Berlin.