What does correlation mean in a graph?

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What does correlation mean in a graph?

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Answer 1 · 2017-03-01T05:41:00

Correlation is how well data can be fitted to a line.

Explanation:

Typically data refers to a scatterplot. If the data can be represented by a line and the line has a positive slope, then it has a positive correlation. If the line has a negative slope, then the correlation is negative.

The absolute value of the correlation coefficient $(| r |)$ $(|r|)$ of the line has values from $0 \to 1.0$ $0 to 1.0$ .

The closer $| r |$ $|r|$ is to $1.0$ $1.0$ the better the data fits the regression line (the line that fits the data best).

In summary: Correlation is how well data can be fitted to a line.

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What does correlation mean in a graph?

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