这项发现是基于对超过100,000人遗传信息统计的基础上，故研究者们能够鉴定出对心脏健康有潜在影响的极微小变异。
Because the findings were based on genetic information gathered from more than 100,000 people, researchers were able to identify subtle variations that could potentially affect heart health.
母体， 随机样本。 样本统计， 样本平均数和变异数的动差。
Populations, random samples. Sample statistics, moments of the sample mean and variance.
应用统计技术可帮助组织了解变异，从而有助于组织解决问题并提高有效性和效率。
The use of statistical techniques can help in understanding variability, and thereby can help organizations to solve problems and improve effectiveness and efficiency.
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