Your tasks: as your solution set to this exam, you are required to submit two files to Canvas before the deadline: (a) A .csv file on the required prediction that includes your predicted values for A(X1, X2) = E(Y) and V(X1, X2) = Var(Y) for the testing data (in 6 digits). Please name your file as "1. YourLastName. YourFirst.Name.csv", e.g., "1.Mei.Yajun.csv" for the name of the instructor. I think students in our class have a unique combination of last/first name, and thus there is no need to include the middle name. . The submitted csv file in excel must be 2500 x 4 column, and the first two columns must be the exact same as the provided testing data file "7406test. csv". The third column should be your estimated mean *(X1, X2), and the fourth column is your estimated variance V*(X1, X2)