please help to answer these questions:

Question 3 1 pts If X has a strong but spurious correlation with Y, which of the following is true: 0 Including X in a model of Y would likely increase the Rsq uared of the model. 0 Including X in a model of Y would reduce the endogeneity of the model. 0 Both of the above 0 None of the above ~..___ Question 5 1 pts Which of the following is correct? (assume and come from a random sample of the population. We are just thinking about the population mean and not an effect of X on Y so we don't need to worry about the functional form of the DGP). ,u is the true mean of the population. 0 X1 is an unbiased estimate of ,u 0 Sample mean f is an unbiased estimate of p -_____.-' 0 X1; X2 is an unbiased estimate of ,u 0 All of the above