Elina 的 GPA 列在单元格 G6 中。如果 Elina 的 GPA 大于 3.0，则她的成绩为良好。如果 Elina 的 GPA 小于或等于 3.0，但大于 2.0，则她的成绩为尚可。否则，她的成绩为不良。结果应仅显示“良好”、“尚可”或“不良”。哪个公式正确显示了这一点？

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Restating the problem: Elina’s GPA is in G6. If GPA > 3.0, the grade should be '良好' (Good). If GPA <= 3.0 but > 2.0, the grade should be '尚可' (Fair). Otherwise, the grade should be '不良' (Poor). The result should display only one of: '良好', '尚可', or '不良'. The provided answer choice is a single formula: =IF(G6 > 3.0, "良好信誉", IF(G6 > 2.0, "良好信誉", "不良信誉")) Option analysis: - The first test: G6 > 3.0. The intention is to return the 'Good' label when GPA is above 3.0. That part matches the required logic in principle, but the returned text is "良好信誉" instead of the expected "良好". This mismatch means the output would not meet the exact wording requirement of the problem. - The nested IF: IF(G6 > 2.0, "良好信誉", "不良信誉"). Here, the condition G6 > 2.0 means that for any GPA greater than 2.0 (including those already caught by the first condition), the formula would return "良好信誉"; otherwise, it would return "不良信誉". This is incorrect for the following reasons: - The label "良好信誉" is inconsistent with the required options which should be exactly "良好", "尚可", or "不良". Using a different wording would fail the output criteria. - The logic would never yield the correct "尚可" label. The spec requires that GPA values between greater than 2.0 and up to 3.0 inclusive (i.e., 2.0 < GPA <= 3.0) produce the "尚可" label, but the formula would produce "良好信誉" for that range instead of the intended "尚可". - Overall, there are two issues: the wording does not match the required outputs, and the conditional branches do not assign the correct label for the 2.0 < GPA <= 3.0 range. Additional observations: - If this were to be corrected, the formula should use the exact output strings "良好", "尚可", and "不良" and the logic should be: =IF(G6 > 3.0, "良好", IF(G6 > 2.0, "尚可", "不良")) - Edge cases: Consider GPA exactly 3.0. The stated condition is GPA > 3.0 for Good, so GPA = 3.0 should fall into the second branch and yield "尚可". The proposed correct structure handles that by using > 3.0 for the first case and > 2.0 for the second, which aligns with the specification. - If someone intended to treat 3.0 as Good, the first test would need to be G6 >= 3.0, but the problem statement says > 3.0, so the current approach is consistent with that wording. In summary, the given formula is incorrect for multiple reasons: it outputs the wrong labels (using 悦语"良好信誉" and "不良信誉" instead of the required "良好", "尚可", "不良"), and the inner conditional would misclassify GPA values in (2.0, 3.0] as the wrong category. A correct version would use the exact strings expected and the proper branch ordering: =IF(G6 > 3.0, "良好", IF(G6 > 2.0, "尚可", "不良"))

CSE 2111 SP2025 (7144) Carmen Quiz 6 - Chapter 6 - IF Functions

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