Question 9 (10pts) A drug dealer Jerry has a 90% chance of going to a bar to drink every day and only goes to a specific 3 bars to drink (with equal probability for each bar). One day, FBI agent Tom wanted to catch the drug dealer, so he went to the bar to find him. Tom went to two bars at random and found that Jerry was not there, so he went to the third bar. Find out the probability p that Tom can catch Jerry at the third bar. Question 10 (10pts) The values of x and their corresponding values of y (2, 10), (-3, 3), (-2, 2) are assumed to arise from the model y; = klx; - 1| + e; , where k is a constant and e; are random variables. a) What assumptions are needed on e; so that it makes sense to do a least squares fit of a curve y = k|x - 1| to the data? (3pts) b) Given the above data with the assumptions needed on et, determine the least squares estimate for k. (7pts)