Discussion exercise. The tank problem. Suppose the following Russian tanks with the following 2021 serial numbers were captured during combat in Ukraine. Assume (for the sake of this problem) that it's a random sample of tanks produced. 038, 072, 121, 158, 206 Question: How could you estimate the total number of tanks produced in Russia in 2021 using these data? (Hint: begin by considering the shape of the distribution of all serial numbers).