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What mathematical tool did Pearson develop that is used to assess the strength of linear relationships?
Correlation coefficient
Derivative calculator
Linear programming
Calculus of variations
Answer
Certainly! The correlation coefficient, a mathematical tool introduced by Karl Pearson, quantifies the strength and direction of linear relationships between two variables. It ranges from -1 to 1, where -1 indicates a perfect negative correlation, 0 signifies no linear correlation, and 1 represents a perfect positive correlation.
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