Part I Statistical Interpretation of Test/Exam Results -- 1 On Average: How good are they? -- 2 On Percentage: How much are there? -- 3 On Standard Deviation: How different are they? -- 4 On Difference: Is that big enough? -- 5 On Correlation: What is between them? -- 6 On Regression: How much does it depend? -- 7 On Multiple Regression: What is the future? -- 8 On Ranking: Who is the fairest o…