probability density function

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Related to Density curve: normal distribution, standard deviation

probability density function

n
(Statistics) statistics a function representing the relative distribution of frequency of a continuous random variable from which parameters such as its mean and variance can be derived and having the property that its integral from a to b is the probability that the variable lies in this interval. Its graph is the limiting case of a histogram as the amount of data increases and the class intervals decrease in size. Also called: density function Compare cumulative distribution function, frequency distribution
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

probabil′ity den`sity func`tion

n.
1. a function of a continuous variable whose integral over a region gives the probability that a random variable falls within the region.
2. a function of a discrete variable whose sum over a discrete set gives the probability of occurrence of a specified value.
[1935–40]
References in periodicals archive ?
The performance of the self-pumping EBC with and without CNTs/CA/CC modified cathode electrode was evaluated by measuring their polarization curve and power density curve (Figure 11).
In this experiment, the polarisation and power density curve is plotted at two modes (i) fan at the top & (ii) fan at the bottom.
Put the optimized signal timing into the road network to obtain the optimized minimum delay curve and traffic flow density curve, and it is compared with current curve controlled by real signal timing.
It can be seen from Figure 10 that the density was increasing continuously, but the trend density curve was not stable.
Figure 4 shows the probability density curve of multipath delay time.
The flux density curve for an inclination angle of [0.sup.0] and for two axial air-gap values are presented in Fig.
The upgrade will replace four Bargraph desks with Harland Simon's P6000 touch screen consoles, including ink presetting, job selection, imposition creation and density curve set-up.
Figure 4 shows the probability density curve for the measurement data obtained from the tests for all combinations of floors and shoes in Table 1.
We then used cosmological models to compute the volume of each bucket and derived the galactic density curve versus the redshift, or light-travel time.
This point could be proved by the current density curve of four devices at high driving voltages shown in Figure 2.
Although the density curve exhibits good log response at the oil shale layer, it is prone to wall collapse.

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