can a positive binomial model be used for overdispersion what type of model is used to estimate the variance of data can you use the variance to predict the range of the range for a r model when does a binomial model generate a parametric estimate of the variance is a positive binomial model parametric what type of model can give parametric estimates of variance? why does positivity regression do not work what is overdispersion which type of r model is best to model the overdispersivity of the data can an error model be used to determine the variance? what type of parametric model would be needed for data collection which type of model does not require a parameter to be generated by the predictors of the model? what would be useful for interpreting the variance of an average count does poisson regression work can poisson regression predict variance what type of model is used to model the distribution of variance why use a model in parametric regression can you use positive binomial regression with variable variance what kind of model is used for variance what kind of model for variance