can you find overdispersion using p df and chi what is ppi and pdf in probability what does parietal deviation mean in a poisson model which is higher a deviance or deviance than a normal distribution what is the difference between a range-based p-value and a poisson-regression-based ppi model? how to find the deviance of the poisson model how is pearson's measure of dispersion which of the following is the correct measure for overdispersion what is deviance divided by degrees of freedom what is the pearson scale how to estimate probability of overdispersion difference between parietal and poisson what is the coefficient for excess dispersion in poisson regression what is the difference between a poisson and a poisson model how to use pearson-chi pb to estimate deviance what is the difference between a poisson and a p value what is the difference between a pearson scale parameter and a poisson model what is the difference between a normal range and a bonjour scale why is the scale parameter of pearson's overdispersion calculated? what is the difference between poisson and p