【考点】统计学初步,实验设计
【难度系数】★★★☆☆
【答案评析】样本选择要有均布性,不可以预设立场,带有偏见。调查内容为城市是否支持建立狗公园,则调查对象不可以只调查养狗之人,应该遍布城市的不同人口。
答案选D
| SAT数学考试知识点解析汇总 | |
【考点】统计学初步,实验设计
【难度系数】★★★☆☆
【答案评析】样本选择要有均布性,不可以预设立场,带有偏见。调查内容为城市是否支持建立狗公园,则调查对象不可以只调查养狗之人,应该遍布城市的不同人口。
答案选D
| SAT数学考试知识点解析汇总 | |
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