The correlation between the size of objects measured with precision in English or in metric units is 1. Any factor that influences one measure also influences the other; 100% of determinants are shared. The correlation between self-reported height and weight among adult American males is .41. If you included women and children, the correlation would be much higher, because individuals’ gender and age influence both their height and their weight, boosting the relative weight of shared factors. The correlation between SAT scores and college GPA is approximately .60. However, the correlation
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