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  2. Spearman's rank correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Spearman's_rank_correlation...

    In statistics, Spearman's rank correlation coefficient or Spearman's ρ, named after Charles Spearman [1] and often denoted by the Greek letter (rho) or as , is a nonparametric measure of rank correlation (statistical dependence between the rankings of two variables).

  3. Greek letters used in mathematics, science, and engineering

    en.wikipedia.org/wiki/Greek_letters_used_in...

    the population mean or expected value in probability and statistics; a measure in measure theory; micro-, an SI prefix denoting 10 −6 (one millionth) Micrometre or micron (retired in 1967 as a standalone symbol, replaced by "μm" using the standard SI meaning) the coefficient of friction in physics; the service rate in queueing theory

  4. Greek alphabet - Wikipedia

    en.wikipedia.org/wiki/Greek_alphabet

    If a rho was geminated within a word, the first ρ always had the smooth breathing and the second the rough breathing (ῤῥ) leading to the transliteration rrh. The vowel letters α, η, ω carry an additional diacritic in certain words, the so-called iota subscript , which has the shape of a small vertical stroke or a miniature ι below the ...

  5. What do teens mean when they say ‘sigma’? - AOL

    www.aol.com/news/teens-mean-sigma-210752971.html

    Sigma meaning (TODAY Illustration) Lindsay added, “So they have the ‘alpha’ which is the most successful, the best looking and then they have ‘sigma’ which is the same thing as an alpha ...

  6. Rho - Wikipedia

    en.wikipedia.org/wiki/Rho

    Rho (/ ˈ r oʊ /; uppercase Ρ, lowercase ρ or ϱ; Greek: ρο or ρω) is the seventeenth letter of the Greek alphabet. In the system of Greek numerals it has a value of 100. It is derived from Phoenician letter res .

  7. Baker Mayfield's 5 touchdowns keep Bucs' playoff hopes alive ...

    www.aol.com/baker-mayfields-5-touchdowns-keep...

    Baker Mayfield delivered his Tampa Bay Buccaneers a brilliant performance in a must-win over the Carolina Panthers to remain in playoff contention.

  8. List of Asian American fraternities and sororities - Wikipedia

    en.wikipedia.org/wiki/List_of_Asian_American...

    Sigma Phi Omega: ΣΦΩ: 1949 University of Southern California: Asian Americans: Interactive 9 Active [26] Sigma Psi Zeta: ΣΨΖ: March 23, 1994: University at Albany: Asian Americans: NAPA: 20 Active [1] Sigma Sigma Rho: ΣΣΡ: December 10, 1998: St. John’s University: South Asians: NAPA: 28 Active [1] [79] Theta Kappa Phi: ΘΚΦ: June 4 ...

  9. What does skibidi toilet mean? - AOL

    www.aol.com/does-gen-alpha-against-ohio...

    Sigma means to be the alpha, or a strong presence, while the opposite is beta, which means to be weak. Ohio. ... Skibidi has a versatile meaning, but when paired with toilet, it means something ...