density curve

A density curve, also called a density function, is a graphical representation of the relative frequency distribution of a continuous random variable. The type of distribution most commonly represented by a density curve is the normal distribution, but any distribution of a continuous variable may be represented by a density curve.

Density curves are always drawn as a continuous curve above the horizontal axis, and have the property that the curve encloses an area of 1 above the axis.

Citation Info

  • [MLA] “density curve.” Platonic Realms Interactive Mathematics Encyclopedia. Platonic Realms, 26 Sep 2014. Web. 22 Oct 2018. <>
  • [APA] density curve (26 Sep 2014). Retrieved 22 Oct 2018 from the Platonic Realms Interactive Mathematics Encyclopedia:


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