Archive | Correlation

"Correlation analysis deals with the association between two or more variables." —Simpson and Kafka "Correlation is an analysis of the co-variation between two variables." —A.M. Tuttle "Correlation analysis shows us the degree to which variables are linearly related." —Wonnacott and Wonnacott Although Karl Pearson was the first to establish the mathematical formula but Sir Francis Galton was the first to [...]

Karl Pearson formulated perhaps the greatest formula to find the degree of correlation. He being a reputed, well known statistician, worked very hard on the theory of correlation. This formula was established in 1896. Merits and Demerits of Pearson's method of studying correlation: Merits: 1. This method indicates the presence or absence of correlation between two variables and gives the [...]