【单选题】【消耗次数：1】
对某行业职工收入情况进行抽样调查，得知其中80%的职工收入在800元以下，抽样平均误差为2%，当概率为95.45%时，该行业职工收入在800元以下所占比重是( )。
①
等于78%
②
大于84%
③
在此76%与84%之间
④
小于76%
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相关题目
【单选题】
对某行业职工收入情况进行抽样调査，得知其中80%的职工收入在800元以下，抽样平均误差为2%,当概率为95.45% 时，该行业职工收入在800元以下所占比重是（ ）
①
等于78%
②
大于84%
③
在此76%与84%之间
④
小于76%
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influence
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