correlation coefficient
US /ˌkɔːr.əˈleɪ.ʃən koʊ.ɪˈfɪʃ.ənt/
UK /ˌkɔːr.əˈleɪ.ʃən koʊ.ɪˈfɪʃ.ənt/

1.
相关系数
a statistical measure that calculates the strength of the relationship between two variables and their direction
:
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The study found a high correlation coefficient between exercise and improved mood.
该研究发现运动与情绪改善之间存在高度相关系数。
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A correlation coefficient of +1 indicates a perfect positive relationship.
相关系数为+1表示完美的正相关关系。