Learn about the negative correlation coefficient, its significance, comparison with other coefficients, and real-world ...

Correlation coefficients range from -1 to +1, indicating the strength of relationships between variables. Investors use correlation coefficients for portfolio diversification to reduce risk.

Years ago, our firm employed a junior investment analyst who left us for supposedly greener pastures. In his exit interview, he told me he was leaving in part because he was great at picking ...

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 ...

In a new article, a team of researchers analyze how to avoid misinterpreting correlations in cross-cultural studies. The researchers identify three sources of non-independence in cultural variables -- ...

Troy Segal is an editor and writer. She has 20+ years of experience covering personal finance, wealth management, and business news. Katrina Ávila Munichiello is an experienced editor, writer, ...