Construct a stem-and-leaf plot for each items and provide a short yet informative interpretation.

1. (Walpole, Myers, Myers, & Ye, p. 31 ) The following scores represent the final examination grades of the elementary statistics course:

23 60 79 32 57 74 52 70 82 36 80 77 81 95

41 65 92 85 55 76 52 10 64 75 78 25 80 98

81 67 41 71 83 54 64 72 88 62 74 43 60 78

89 76 84 48 84 90 15 79 34 67 17 82 69 74

63 80 85 61