A school uses merit based pay for teachers. Each teacher would be given a score between 1 (Far Below Expectations) and 5 (Exceeds expectations) in the following categories. The weight of each category is included. . Content Knowledge (20%) . Lesson plans (15%) . Instruction delivery (20%) . Classroom management (15%) . Student Performance (20%) . Supplementary Responsibilities (10%) A teacher received the following scores. What was his weighted average? Content Knowledge = 4 Lesson plans = 3 Instruction delivery = 3 Classroom management = 5 Student Performance = 4 Supplementary Responsibilities = 2 The teacher's weighted mean is