我需要一种能够自动确定每组数据使用的最佳比例的方法。

What I needed was a means of automatically determining the best scale to use for each set of data.

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计算频率和比例，确定死亡率的95%置信区间。

Frequencies and rates were calculated, and 95% confidence intervals were determined for mortality rates.

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然后通过体重指数表或在线进行计算确定你的体重指数(一种关于身体脂肪比例的指标)。

Then determine your body mass index (BMI) - an indicator of your percentage of body fat - through a BMI table or online calculator.

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