when a dependent variable is included on the left, what is the relationship between the omitted variable and the main variable how do two variables of interest affect one another what is the relationship between the variable of interest and the dependent variable of interest what is the relationship between the independent and the dependent variable when the omitted variable is included? which variable is omitted from a model of the experiment? what is the relationship between the variable of interest on left hand side and the dependent variable when included? which variable of interest is included in the dependent variable what is the relationship between the variable of interest on the right hand side of the equation, and the dependent variable, when the omitted variable is included? which of the following variables has little or no statistical significance? what is the relationship between each variable on the right side and which variable is not included? why does an omitted variable make an estimate more precisely estimated? what variables are included in the analysis how does omitted variable impact results why is it important to include an omitted variable in an estimate which variable is an omitted variable what would happen if a variable was omitted on the right hand side how does an omitted variable influence the relationship between the main and the omitted variable? which variable does an omitted variable include in a statistical model of the relationship between a variable of interest, which is the dependent variable, and the variable omitted? what is the relationship between an omitted variable and a dependent variable what is the effect of an omitted variable when it is included in the variable