Chapter 5 Correlation
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Project on Correlation
In mathematics, correlation refers to a statistical measure
that describes the relationship between two variables. It indicates how much
and in what way the variables change together.
The correlation coefficient is often used to quantify this
relationship. It's a value between -1 and 1.
• A
correlation coefficient close to 1 indicates a strong positive correlation,
meaning that as one variable increases, the other tends to increase as well.
• A
correlation coefficient close to -1 indicates a strong negative correlation,
meaning that as one variable increases, the other tends to decrease.
• A
correlation coefficient close to 0 indicates little to no linear relationship
between the variables.
Correlation does not imply causation; it simply indicates that there is a relationship between the variables, but it doesn't tell us which variable is causing the change in the other.