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ZX-022332D7322024年8月北美A卷 · 第 2 题
2024年8月北美A卷 · 原库模块 1 · Q2 原库参考解析
A company studied a random sample of 72 lawns in a small town. The company found that 9 of these lawns contain acidic soil. If there are 1,080 lawns in the town, which of the following is the best estimate of the number of lawns that contain acidic soil?
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