This comprehensive final exam includes questions gathered from all concepts we explored during our semester together. Flag question: Question 1 Question 12 pts The average verbal SAT score for the entire class of entering freshmen is 530. However, if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530. What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean? Group of answer choices Statistical error Inferential error Sampling error Parametric error Flag question: Question 2 Question 22 pts A researcher conducts an experiment to determine whether moderate doses of St. Johns Wort have any effect of memory for college students. For this study, what is the independent variable? Group of answer choices The amount of St. Johns Wort given to each participant The memory score for each participant The group of college students Cannot answer without more information Flag question: Question 3 Question 32 pts Which of the following is an example of a continuous variable? Group of answer choices The gender of each student in a psychology class The number of males in each class offered by