rho

Correlation coefficient symbol

Rho is the seventeenth letter of the Greek alphabet (Ρ, ρ), corresponding to the English R.

In mathematics and science, lowercase rho commonly represents density or resistivity: The equation uses rho for fluid density.

In statistics, rho denotes correlation coefficients.

The letter appears in Greek-letter fraternities and sororities, and in various technical notations across physics and engineering. (Capitalized Rho may appear as a proper name.)

alphabet

alpha

First Greek letter

betaGreek alphabet's second letter
gammaGreek alphabet's third
deltaSymbol denoting variation

epsilon · zeta · eta · theta · iota · kappa · lambda · mu · nu · xi

physics

density

Mass-to-volume ratio

fluidSubstance that flows
massQuantity of matter
volumeAmount of space filled

resistivity · material · conductivity · plasma · notation · constant · parameter · proportionality

statistics

correlation

Statistical relationship measure

coefficientNumber multiplying a variable
rankPosition in hierarchy
bivariateHaving two variables

multivariate · relationship · dependence · covariance · association · strength · scatterplot · regression · p-value · variance

biopharma

signaling

Conveying information nonverbally

cellBasic unit of life
cytoskeletonInternal protein support structure
actinCellular contractile protein

motility · pathway · protein · kinase · migration · membrane

finance

sensitivity

Responsiveness to stimuli

durationLength of existence
bondBinding tie or connection
hedgingNoncommittal maneuvering

derivatives · options · pricing · portfolio

rho

alpha

density

correlation

signaling

sensitivity

rho

Categories