with True or False. You will also need to justify your answer briefly in a maximum of TWO sentences. Marks will be given for correct justifications. 1) An instrumental variable (IV) is called weak when its correlation with the error in the structural equation is small. 2) A feature of the simultaneous equations model (SEM) is that the number of structural equations is the same as the number of all variables in the model. 3) The structural parameters of a SEM are identified as long as the reduced form parameters of SEM are identified. 4) In the Probit model, the partial effect of a one unit increase in x, may or may not have the same sign as the coefficient on X1- 5) The likelood of a continuous random variable yis measured by the model's probability density function (PDF) evaluated at yi and the likelihood of a random sample tv: = 1,.., n) is the summation of the likelihoods of individual observations. 6) Poison regression is best used for count data that mostly crowd at the first few nonnegative integers such as the number of road accidents on a highway. 7) The censored regression model is useful for cases