问题 解答题

某校课外环保小组对本市的十个地方抽样做空气的含尘调查.数据如下(单位:克/立方米):

0.01,0.04,0.03,0.04,0.02,0.03,0.04,0.03,0.01,0.03.

(1)说出这组数据的众数和它的实际意义;

(2)如果国家环保局对大气飘尘的要求为平均值不超过0.025克/立方米,问该市的空气是否符合国家环保要求?

答案

(1)0.03克/立方米出现了四次,次数最多,众数为0.03克/立方米;

其实际意义是反映了空气质量状况的集中趋势.

(2)因为0.03克/立方米>0.025克/立方米,所以该市的空气不符合国家环保要求.

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