最新试题
If data are grouped into intervals and the number of items in each group is listed, this could be called a ()
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品合格率指标是()
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常用的长期趋势测定的方法有哪些?各有什么特点?
题型:问答题
A cumulative frequency distribution would provide().
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一个地区一定时期的商品零售额属于()
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对某班级学生的生活状况进行统计调查,下列标志中属于不变标志的是()
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某企业2018年技术工占50%,2019年新招收了一批学徒工,使学徒工的比重增加了10%。假定全厂各级工资水平均无变化,则2019年职工总平均工资将()
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A student achieves an 82 on the first test in a statistics course. From this, she assumes that her average at the end of the semester (after other tests) will be about 82. This is an example of ().
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以2000年a0为最初水平,2016年an为最末水平,计算钢产量的年平均发展速度时,须开()
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A summary measure that is computed from a sample to describe a characteristic of the population is called()
题型:单项选择题