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Variance Metric: Difference between revisions
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* ([[Lord et al., 2005]]) ⇒ [[Dominique Lord]], [[Simon P. Washington]], and [[John N. Ivan]]. (2005). “Poisson, Poisson-gamma and zero-inflated regression models of motor vehicle crashes: balancing statistical fit and theory.” In: Accident Analysis & Prevention, 37(1). [http://dx.doi.org/10.1016/j.aap.2004.02.004 doi:10.1016/j.aap.2004.02.004] | * ([[Lord et al., 2005]]) ⇒ [[Dominique Lord]], [[Simon P. Washington]], and [[John N. Ivan]]. ([[2005]]). “Poisson, Poisson-gamma and zero-inflated regression models of motor vehicle crashes: balancing statistical fit and theory.” In: Accident Analysis & Prevention, 37(1). [http://dx.doi.org/10.1016/j.aap.2004.02.004 doi:10.1016/j.aap.2004.02.004] | ||
** QUOTE: The [[arithmetic mean|mean]] and [[arithmetic variance|variance]] of the [[binomial distribution]] are <math>E(Z) = Np</math> and <math>VAR(Z) = Np(1-p)</math> respectively. | ** QUOTE: The [[arithmetic mean|mean]] and [[arithmetic variance|variance]] of the [[binomial distribution]] are <math>E(Z) = Np</math> and <math>VAR(Z) = Np(1-p)</math> respectively. | ||