An array of inferential statistical procedures (methodologies for estimating population parameters based upon sample data) could be fruitfully exploited, but at present are not being applied.

有许多 推论统计步骤（根据样本数据估计总体参数的方法）可以被充分利用，但目前却没有应用它们。

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Some empirical formulas for rapid estimating life loss with consideration of seismic intensity and population density as parameters are given.

并以地震烈度和人口密度为参数，给出快速评估人员伤亡的经验公式。

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A method of estimating the confidence interval for debris population using radar beam fence is described.

针对雷达波束篱笆空间碎片探测模式，提出了一种估计碎片数量置信区间的方法。

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One caveat: Estimating population for comparably defined urban areas, particularly in the developing world, can be difficult.

FORBES: The World's Fastest-Growing Megacities

The Brics bloc represent 40% of the world's population, with some estimating that it contributes about a fifth to the world economy.

WSJ: Brics May Offer Bank Stake to Non-Members