题目内容：
已知洛伦茨曲线L与绝对平均线OP围成的弓形面积S、AOWP的面积，那么基尼系数的计算公式为（ ）。
参考答案：
答案解析：
单选题：已知洛伦茨曲线L与绝对平均线OP围成的弓形面积S、AOWP的面积，那么基尼系数的计算公式为（ ）。
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- 题目类型：单选题
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