Statistics

Correlation and Scatter

Relationship between two variables

  • High school
  • about 3 min
  • 4 of 4 in the family
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r = 0.655
Correlation ρ = 0.70
r=0.655r = 0.655

Moderate correlation

Pearson's r ∈ [-1,1] measures linear relationship strength. r=1: perfect upward, r=-1: perfect downward, r=0: no linear relationship.