can we measure residuals and have them be the same is residuals significantly different from 0 what means mean of residuals is mean of residuals important for the quantile regression? why is quantile regression important which is necessary to have mean of residuals equal to 0? why is a mean of residuals significant what is mean of residuals in quantile regression can quantile regression use mean of residuals? what is means of residuals what is the difference between mean and the mean of residual in a qri is it necessary to have mean of residuals which is equal to 0 in quantile regression? when a residuals are determined the mean is what what is mean of residuals why does the residual mean in quantile regression vary significantly? when is the mean of residuals in a t regression significant what does mean of residuals mean in quantile regression is it necessary to have mean of residuals equal to 0 in quantile regression? which variable represents a means of residual in the quantile regression? what is the residual mean in quantile regression