题干

质量检测部门对甲、乙、丙三家公司销售产品的使用寿命进行了跟踪调查,统计结果如下(单位:年):

甲公司:4,5,5,5,5,7,9,12,13,15;

乙公司:6,6,8,8,8,9,10,12,14,15;

丙公司:4,4,4,6,7,9,13,15,16,16.

请回答下列问题:

(1)甲、乙、丙三家公司在该产品的销售中都声称,其销售的该产品的使用寿命是8年,你如何理解他们的宣传.(请用已学的统计量中加以说明)

(2)如果你是顾客,你将选购哪家公司销售的产品,为什么?

(3)如果你是丙公司的推销员,你将如何结合上述数据,对本公司的产品进行推销?

上一题 下一题 0.0难度 选择题 更新时间:2019-02-14 01:09:14

答案(点此获取答案解析)

解:(1)甲厂:平均数为10
1
(4+5+5+5+5+7+9+12+13+15)=8,众数为5,中位数为6;
乙厂:平均数为10
1

同类题3

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同类题4

在培养皿底部铺上棉花,把胚具活性且大小相同的小麦种子放在棉纱上,进行如下实验。
实验结果如下表所示,以下关于实验的相关叙述正确的是(   )
装置
场所
温度
棉纱状态
数日后的现象

日光
23℃
潮湿
全部发芽

日光
23℃
干燥
没有发芽

黑暗
23℃
潮湿
全部发芽

黑暗
23℃
干燥
没有发芽