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This video explains how to find the correlation coefficient which describes the strength of the linear relationship between two variables x and y.

Correlation Coefficient:

Covariance and Correlation Coefficient:


How To Calculate Covariance:


Least Squares Method:


Averages and Uncertainty:


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Introduction to Statistics:


Mean, Median, Mode, & Range:


Arithmetic, Geometric, & Harmonic Mean:


Interquartile Range & Outliers:


Standard Deviation:


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Introduction to Probability:


Probability Formulas:


Conditional Probability:


Probability Tree Diagrams:


Probability - Standard Normal Distributions:

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