Reciprocal relation; corresponding similarity or parallelism of relation or law; capacity of being converted into, or of giving place to, one another, under certain conditions; as, the correlation of forces, or of zymotic diseases.
There are so many artists that are dyslexic or learning disabled, it's just phenomenal. There's also an unbelievably high proportion of artists who are left-handed, and a high correlation between left-handedness and learning disabilities. Chuck Close
Hindered by asthma since I was six weeks old, I had begun experimenting with my diet and discovered a disquieting correlation. When I stopped eating the normal American diet of sugar, fats, alcohol, chemicals, and additives, I felt better. I could breathe freely. When I tried to sneak in a hamburger and a Coke, my body rebelled. Paul Hawken