摘要:3.某四名同学从编号为51-100的总体中抽取8个个体组成一个样本.他们选取的样本中个体编号如下.具有随机性的是A.55.60.70.75.85.90.95B.63.64.65.66.80.81.82.83C.53.55.57.59.61.63.67D.97.84.58.69.82.73.74.89
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有四名同学从编号1~50的总体中抽取8个个体组成了一个样本,他们选择的样本中个体编号分别为:
①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
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有四名同学从编号1~50的总体中抽取8个个体组成了一个样本,他们选择的样本中个体编号分别为:
①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
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①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
A.④ | B.③ | C.② | D.① |
有四名同学从编号1~50的总体中抽取8个个体组成了一个样本,他们选择的样本中个体编号分别为:
①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
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①5,10,15,20,25,30,35,40.
②43,44,45,46,47,48,49,50.
③1,3,5,7,9,11,13,15,17.
④43,25,2,17,35,9,24,19
你认为样本( )较具有随机性.
A.④ | B.③ | C.② | D.① |