What you’ll learn
Interpret correlation strength/direction.
Key idea
Linear strength uses magnitude, while positive/negative sign indicates direction.
Magnitude compares linear strength; sign gives direction, neither establishes causality or population claims.
Worked example
Enter the exact value or ordered values in the format requested below.
Technology reports correlation r_A=7/10, r_B=2/5 for two measured samples. By how much does A linear strength |r| exceed B? Enter an exact numerical value.
- Signs indicate directions: A positive, B positive.
- Magnitudes |r_A|=7/10 and |r_B|=2/5 measure linear strength, so A is stronger by 3/10; neither coefficient alone proves causation or a population claim.
Answer: 3/10
Quick Check
Interpret the result of 'Interpret correlation strength/direction' in the data-generating context, including units and population limits.
Technology reports correlation r_A=-3/4, r_B=-1/2 for two measured samples. Interpret BOTH sample directions and their relative linear strength without a universal cutoff or causal claim.