how to find the proportion of variation in a logistic regression model polr calculates proportion of variation quizlet how do I find the proportion of variation explained by this ordinal logistic regression model? how is variation explained in a logistic regression model how to explain variation in an ordinal regression model what model does a distribution of variation in a sugar molecule describe? what is the proportion of variation explained by polr which logistic regression model allows for variation how is variation explained in logarithms when does polr show variation in the model why doesn't the summary give null deviance how does the proportion of variation of the logistic regression model differ from the proportion of variation in other logistic regression models? what makes up the polr of a model how to explain variation in a linear model how to explain the proportion of variation in a logistic regression model polr is used to find how do you explain variation with ordinal logistic regression model how to explain variation in logistic model which model explains variation what is the proportion of variation explained in the data