单词:product limit estimator
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by Jason Marshall Sometimes statistics* seems magical. Of course, there isnt really anything magical going onbut the fact that statistical methods can be used to pull useful information out of a hatful of messy data is, at a minimum, remarkable. And,
Most people are uncomfortable hanging out in the I don't know space. The anxiety of not knowing triggers a rush to decision making. However, learning how to deal with periods of uncertainty while weighing your options will afford you the time to make
Oil prices began bouncing back Wednesday after members of the Organization of the Petroleum Exporting Countries agreed to a modest production cut of 500,000 barrels a day, during a meeting in Vienna. Lisa Bryant reports for VOA from Paris. OPEC head
left-skewed 左偏 negative-skewed 负偏 right-skewed 右偏 positive-skewed 正偏 contingency table 列联表 sampling distribution (of a statistic)(某个统计量的) 抽样分布point estimate 点估计值 point estimator 点估计式 unbiased