...平均值的估计.置信区间范围 英文名称： Statistical interpretation of test results -- Estimation of the mean -- Confidence interval 标准组织： 【ISO】国际标准化组织标准 正文语种： 英法双语 国标分类： 【A41】数学 I..
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讨论了等距抽样中，如何利用辅助信息改进总体平均值的估计，以达到提高估计精度之目的。
This paper deals with the estimation of population mean in systematic sampling by use of auxiliary information in order to improve the accuracy of the estimate.
货币基金组织估计，如果波动率的两个标准差超过了1990年以后的平均值，新兴市场的利差将扩大两倍。
The IMF reckons that, if volatility moved to two standard deviations above its post-1990 average, emerging-market debt spreads would more than double.
一位典型的爱尔兰家庭主妇估计今年要花费1.339欧元（$1.734），高于美国家庭的平均值，甚至超过了法国家庭的两倍。
A typical Irish household is expected to spend euro1,339 this year ($1,734), rather more even than the average American family and more than twice as much as a French one (see chart).
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