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12 cards from this deck
Visual tool to investigate relationships between two data sets
Data in pairs: two variables measured for same subject/time
Never join - shows individual data points, not continuous line
Strength and direction of relationship between two data sets
As one variable increases, the other also increases
As one variable increases, the other decreases
No clear relationship; points randomly scattered
Points lie close to an imaginary straight line
Points more spread out but still show a general trend
Points lie approximately on a straight line
Strength (strong/weak) & direction (positive/negative/none)
Correlation doesn't prove causation
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