42 / 106 90% + MAT130 Worksheet 4.7 Name: The infamous MAT130 Exam 3 taken by 226 students at Jackson College during the Fall 2018 semester had a mean of approximately 61% and a standard deviation of about 22%. Let us assume the data are approximately normal, fill in the normal curve above using the exam mean and standard deviation. What percent of students scored below a 39%? 3. What percent of students scored above an 83% 4. How many students scored between a 39% and an 83%? 5. What evidence do we have that these scores are not normally distributed? What was your exam 3 score? Calculate the z-score of your exam 3 score. What does your z-score mean in relation to the average