<code><a href="../reference/margins.html">margins()</a></code> will supply the average marginal effects of the constituent variables in the model. Note how the <code>drat:wt</code> term is not expressed in the margins results. This is because the contribution of the <code>drat:wt</code> term is incorporated into the marginal effects for the constituent variables. Because there is a significant interaction, we can see this by examining margins at different levels of the constituent variables. The <code>drat<