The regression equation Salary = 25,000 + 3200 YearsExperience + 1400 YearsCollege describes employee salaries at Axolotl Corporation. The standard error is 2600. John has 10 years' experience and 4 years of college. His salary is $60,500. What is John's standardized residual?
-1.109
-0.808
+0.850
+1.250