strong correlation: -0.91, 0.82
Medium correlation: -0.49, 0.54
weak correlation: 0.26, -0.18
If the decimal starts with 7,8, or 9 (like .82 or .91), it is strong correlation.
If the decimal starts with 6,5,4 (like .54, .49) then it is moderate correlation.
If the decimal starts with 1,2 or 3 (like .26) then it is weak correlation.
The negative signs have no effect.
