早期尝试去预报人类生存能力基于种群数量统计学的不确定，无论一个单独的幸存者从一年到了下一年因为一个重要的机会而增多。
Early attempts to predict population viability were based on demographic uncertainty Whether an individual survives from one year to the next will largely be a matter of chance.
人口统计学数据显示，未来中国男孩与女孩的数量差将进一步扩大，因此家长们的存钱压力将更显突出。
Demographic data indicate that China's boys will outnumber girls by even wider margins in years ahead, so the competitive pressure for parents to save will become even more intense.
在报告中，他们没有包含实际运用的统计学检验、显著性(p值(统计学中进行检验决策的一个重要依据——译者注))、以及调查的每一组别里个体的数量。
What isn't included in the actual report are the actual statistical tests used, statistical significance (p values), and Numbers of subjects in each group studied.
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