So should you may solely use Product X when you first had Product Y, then they are strong complementary items. A special kind of inferior good might exist generally known as the Giffen good, which would disobey the “regulation of demand”. For example, if the worth of

Contents

• Weighted correlation coefficient
• Rank correlation coefficients
• FAQs on Correlation and Regression
• Perfect and No Correlation
• Correlation coefficient is denoted by the symbol r a

However, in general, the presence of a correlation is not sufficient to infer