1. Describe and give clear, practical examples (charts, graphs, lists, etc.) of the following concepts related to Statistical Inferences using a fictitious class distribution of grades: 100 students; 20 -A’s; 40 – B’s; 30 – C’s; 9 – D’s; 1 – F: Bar Chart; Histogram; Pie Chart; 5-column Data Set; Positive Skewed Sampling Distribution; Negatively Skewed Sampling Distribution; Scatter Plot