題組內容

6. (20%)Throwing two fair dice, each has six faces (1,2,3,4,5,6 points). \( X_1 \), \( X_2 \) represent the number of results respectively. \( Y=\max(X_1,X_2) \)。Please calculate:

(2) \( (10\%)\mathrm{Var}(\mathrm{Y}) \)