发布人:繁体字网(www.fantiz5.com) 发布时间:2015-02-24 07:30:00
试题原文 |
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(1)把这组数据从小到大排列为0.01,0.01,0.02,0.03,0.03,0.03,0.03,0.03,0.04,0.04,0.04,0.05, 故中位数是0.03(g/m3). 出现次数最多的数据是0.03g/m3,所以众数是0.03g/m3. (2)∵平均数=(0.01+0.01+0.02+0.03+0.03+0.03+0.03+0.03+0.04+0.04+0.04+0.05)÷12=0.03 (g/m3), ∵0.03 g/m3>0.025 g/m3 ∴这天该城市的空气不符合要求. |
经过对同学们试题原文答题和答案批改分析后,可以看出该题目“为了培养学生的环保意识,某校组织课外小组对该市进行空气含尘调..”的主要目的是检查您对于考点“初中平均数”相关知识的理解。有关该知识点的概要说明可查看:“初中平均数”。