Determine the value of that makes the function , = 1 5 2 ( + ) a joint probability mass function over the points of S = , where = 1,2,3,4 , = {1,2,3,4}. 2. For this distribution function calculate Pr{ 2, 2} and Pr 2 = 3 . 3. Calculate , and (). 4. Four electronic printers are selected from a large lot of damaged printers. Each printer is inspected and classified as containing either a major or a minor defect. Define and as the number of printers with major and minor defects, respectively. Determine the range of the joint probability distribution of and