Skip to main content
phi

phi

13 7.5
A Greek letter that is the 21st and that people use as a math and science symbol
  • noun
  • /faɪ/
  • Specialized
: fi
  • The notation is that is for the CDF, capital Phi is the standard normal CDF.

Not each value at each X, but all the possible values of the function Phi of X OK.

Autoplay Next

Examples

  • I'm a Phi Beta Kappa in electrical engineering.

  • But then once you've specified that, then they give this quantity that they call Phi, you know, the Greek letter fee.

  • Health care providers are allowed to share PHI as necessary to carry out treatment.

    Blog text (26)
  • It's called the Phi Phenomenon.

  • I graduated Phi Beta Kappa.

  • Two of the phi values deviated from the original zero-order phi value of 0.10.

    Academic text (1994)
  • For cross-tabulation, the phi or Cramer's V coefficients were chosen as the standardized measures of association.

    Academic text (1990)
  • In mathematics, the golden ratio is often represented by the Greek letter Phi.

  • The variable Phi is used in physics to denote the angle of rotation.

  • In statistics, Phi represents a specific type of correlation coefficient.

Compounds

phi coefficient
  • Specialized
9.9

A number showing how strongly two yes or no things are linked and its direction

phi correlation
  • Specialized
9.8

A number that shows how strongly two yes or no variables are related

Surface Forms

phi singular
phis plural

Etymology

Phi is the name of the 21st letter of the Greek alphabet, written Φ φ. This letter begins English words like philosophy and photo and is often used as a symbol in math and science, for example for the 'golden ratio', so thinking of phi as a special Greek symbol helps you remember its modern use.