In your statistics class, you are trying to evaluate the typical grade on a professor's final exam. To perform exploratory data analysis, you need to consider the center, variation (spread), and distribution (shape) of the data including identifying the presence/absence of extreme values and subsequently select and use the best method to identify the 'typical' values. The professor provides a random sample of final exam grades from the past three years. Final Exam Grades 87 92 76 65 84 76 71 20 36 60 78 82 73 90 67 85 99 62 74 83 89 56 97 70 68 93 80 55 91 69 Summary Statistics ???? ???? ???????? ???? ???? ???????? 74.266667 17.423593 303.58161 74.266667 17.130739 293.46222 ???????????????????????? ???????? ???????? ???????????? ???????????? 76 67 87 20 99 Manipulation of numerical data or observable facts a) Identify and label appropriate numerical summaries and create appropriate graphs that may be useful in describing the shape of the distribution, providing at least 2 forms of evidence for your answer. Then utilize the proper method to find if there are any unusual grades in the 30 values. Organize your work and report all intermediate calculations that you use