Rho: Seventeenth letter of the Greek alphabet
Rho (uppercase/lowercase Ρ ρ) is the 17th letter of the Greek alphabet.
It is used to represent the "r" sound in Ancient and Modern Greek. In the system of Greek numerals, it has a value of 100. Letters that came from it include the Roman R and Cyrillic Р.
In statistics, the lowercase Rho ("ρ") is used to represent population correlation. In physics, the same letter is used to represent density.
Related pages
- Spearman's rank correlation coefficient, represented by ρ
References
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