3. Consider the following microdata release. salary occupation id 1 60 1 2 80 1 3 55 2 4 100 3 5 120 3 6 180 4 (a) Calculate the average value of the salary column. (b) Assume that bounded noise with B=10 is added to each value in the salary column. What is the maximum and minimum average salary that could result from this noise-adding algorithm? (c) Assume now that instead of releasing the microdata, the data curator chooses to release the average salary using bounded noise with B=10. What is the maximum and minimum average salary that could result from this algorithm? (d) Given the above answers, which method would you choose for the data re- lease? Why? (e) If the purpose of the data release was to release the average salary per occu