True False Uncertain with Explanation a One can still use a

True, False, Uncertain with Explanation:

(a) One can still use a linear regression framework even if the relation between a regressor and the dependent variable is not linear.

Solution

True . In most of the cases the data is not exactly linear. By plotting the values on x-y plane and decide whether a linear relationship exists between regressor and the dependent variable. in most of the cases it is not perfect linear relationship. Even if it doesn\'t follow perfect linearity but somehow it has some linearity we can still use linear regression framework.

Next, there are many non-linear function so its quite time consuming and difficult to identify the correct non-linear function. so we can use linear regression framework eventhough if it is not perfect linear.