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If we use Table B of random digits to select random samples,which of the following are true, and which are false? Briefly explain your answers.

1.Each row has 40 digits and therefore there must be exactly four 8s in each row。
2.The specific sequence 1234 of digits can never appear as a group because this sequence is not random

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关键词：therefore following sequence Specific explain 翻译 请教

If we use Table B of random digits to select random samples,which of the following are true, and which are false? Briefly explain your answers.
如果我们使用随机数字表B来选择随机样本，那么以下陈述哪些是正确的，哪些是错误的？并且简短说明你的答案。

1.Each row has 40 digits and therefore there must be exactly four 8s in each row。
1.每行有40个数字，因此每行肯定刚好有四个8

2.The specific sequence 1234 of digits can never appear as a group because this sequence is not random
特定的数字序列如1234永远不会作为一类出现，因为这个序列不是随机的