在各年龄段中成线性相关，危险程度在整个体重指数分布范围内逐渐增加。

The associations were linear for each age, and the risk increased across the entire BMI distribution.

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图1显示了一个典型的正态概率分布函数，这样命名是因为绝大多数值都属于这个分布范围内。

Figure 1 shows a typical normal probability density function, so called because most observations fall into this sort of distribution.

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换句话说，如果有90%的值落在某个范围内，那么频率分布将告诉您有什么生僻的值，并且可能表明那些生僻的值存在质量问题。

In other words, if you have 90% of your values between a certain range, the frequency distribution would tell you what the outlying values are and may indicate a quality issues in those outliers.

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But it turns out the probability is only significant within one angstrom.

但概率主要,分布在一个埃范围内。

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