名词
中文翻译：相对频率
同义词：
['relative rate', 'relative probability']
例句：
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1.The relative frequency of this event in different regions varies significantly.
这个事件在不同地区的发生频率显著不同。
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2. In the study, we found that the relative frequency of certain genes is higher in somepopulations than others.
在研究中，我们发现某些基因在特定人群中的出现频率比其他人群高。
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3.The relative frequency of this disease is decreasing in recent years due to improved public health measures.
由于公共卫生措施的改善，这种疾病的相对频率近年来有所下降。