Ordinary least squares of simple linear regression model

l) (30 pts) Suppose we observe just one point: (X, Y). Find 30 and 31 according to the proof we have done in class. Explain the results, and propose possible solutions if you see any unusual behavior. 2) (30 pts) Suppose we observe many points, except all have the same value X: (X, Yi),i = 1, ...,n. Find 30 and [ii according to the proof we have done in class. Explain the results, and propose possible solutions if you see any unusual behavior