Name: 1. A sample of n=12 scores has EX=72. What is the sample mean? (0.5 points) 2. What is the mean for the following scores: 2, 7, 9, 4, 5, 3, 0, 6? (0.5 points) 3. A sample with M=8 has a Ex=56. How many scores are in the sample? (0.5 points) 4. Dr. Lee is teaching two different psychology classes. Based on the scores fo each class what is the weighted mean? Class 1 Class 2 5,7,8,5,4,10 3,9,5,4,9,10,10,8,9