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【简答题】
写出下列随机试验的样本空间: (1)记录某班一次统计学测验的平均分数 (2)某人在公路上骑自行车,观察该骑车人在遇到第一个红灯停下来以前遇到的绿灯次数 (3)生产产品,直到有10件正品为止,记录生产产品的总件数
拍照语音搜题，微信中搜索"皮皮学"使用
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