Coefficient of Variation Calculator
ncalculators.com › statistics › coefficient-ofCoefficient of variation (CV) calculator - to find the ratio of standard deviation ((σ) to mean (μ). The main purpose of finding coefficient of variance (often abbreviated as CV) is used to study of quality assurance by measuring the dispersion of the population data of a probability or frequency distribution, or by determining the content or quality of the sample data of substances.
Correlation Coefficient Calculator
www.calculators.org › math › correlationSep 25, 2019 · A correlation coefficient formula is used to determine the relationship strength between 2 continuous variables. The formula was developed by British statistician Karl Pearson in the 1890s, which is why the value is called the Pearson correlation coefficient (r). The equation was derived from an idea proposed by statistician and sociologist Sir ...