correlation; interrelation; intertwining
二つの事象の相関関係を分析した。
I analysed the correlation between two phenomena.
運動量と体重の相関関係は明らかだ。
The correlation between exercise and body weight is clear.
気温と電力消費量の間には強い相関関係が見られる。
A strong correlation can be seen between temperature and electricity consumption.