what is the correlation between replies and postings how to do correlation regression of mean and variance why would i expect coefficients of regression to be different for the different sizes of each regression model? what is the relationship between average reply and mean? in a regression regression what is the correlation in coefficient regression how to calculate the variance of each point how to model the distribution of responses by group what is the relationship between replies and postings how to calculate the mean of each group in regression average variance and means is postings and postings the same in a regression model? what is the correlation between response xi xi what does a regression mean does posting increases postings which statement describes the relationship between postings and responses? what does the correlation between postings and reply mean what is the difference between a group and a group how do you find the variance in the coefficient of a regression model what is meant by the distribution of replies how to model for variance