The Trap 90% of Data Analysis Falls Into: The Big Lie That Zero Correlation Means No Relationship

Have you ever looked at data, seen a correlation coefficient of zero, and felt relieved that 'these two things are unrelated' ...

Is a 'Correlation Coefficient of 0.8' a Success? The Major Misconception in Data Analysis That Is Cutting Into Your Sales

Is your company's marketing strategy being deceived by the 'appearance' of data?A major e-commerce company discovered a ...
techtarget

correlation coefficient

A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable predict change to the value of another. In positively correlated variables, the value ...
Kellogg School of Management

Covariance and Correlation

In the first case, there is a strong upward-sloping relationship between X and Y; in the second case, no apparent relationship; in the third case, a strong downward-sloping relationship. Note the ...