2018_2019学年七年级数学上册第六章数据的收集与整理6.1数据的收集课件(新版)北师大版.ppt

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第六章 数据的收集与整理,1 数据的收集,1.我们经常通过 、 等方式获得数据信息. 2.当调查或试验项目很大,我们个人无法完成时,还可以通过查阅报纸、相关文献或上网的方式,获得 .,调查,试验,数据信息,1,2,3,答案,1.(2017河北邢台临城县期末)下面的调查中,适合用试验方法的是( ). A.推荐班长候选人 B.调查同学们的生日 C.你在10 s内能跑多少米 D.世界上发生的“禽流感”的情况,1,2,3,答案,2.(2017河北唐山路南区一模)当前“低头族”已成为热门话题之一,小颖为了解路边行人边步行边低头看手机的情况,她应采用的收集数据的方式是( ). A.对学校的同学发放问卷进行调查 B.对在路边行走的学生随机发放问卷进行调查 C.对在路边行走的行人随机发放问卷进行调查 D.对在图书馆里看书的人发放问卷进行调查,1,2,3,答案,3.你们班的男同学每分跳绳的情况怎么样?在这一个问题中所调查的问题是 ,调查的对象是 ,所采用的收集数据的方法是 .,

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