Question
Correlation
Answer :
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Correlation is a statistical measure that describes the degree of relationship between two or more variables. It indicates whether an increase in one variable leads to an increase or decrease in another. The most commonly used correlation measure is the Pearson correlation coefficient (r), which ranges from -1 to +1. A value of +1 indicates a perfect positive correlation, -1 indicates a perfect negative correlation, and 0 indicates no correlation.
Correlation can be positive or negative. In a positive correlation, as one variable increases, the other also increases. For example, the relationship between income and expenditure can be positively correlated, where higher income tends to lead
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