# probability density function

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Related to Density curve: normal distribution, standard deviation

## probability density function

[‚präb·ə′bil·əd·ē ¦den·səd·ē ‚fəŋk·shən]
(statistics)
A real-valued function whose integral over any set gives the probability that a random variable has values in this set. Also known as density function; frequency function.
References in periodicals archive ?
5 shows the polarization and power density curves of the air breathing PEM fuel cell stack at various hydrogen flow rates.
Taking the traffic density of the two representative sections Street2 and Street3 as the examples, the traffic density curve between the change of traffic input and signal control under different control methods is drawn in Figure 6.
The density curve was closed to actual density after the process.
Caption: Figure 2: The arrival probability density curve after k time(s) reflection(s).
This conclusion can also be derived from Figure 1, in which the probability density curve of 25% RH is very close to the curve of 8% RH but far away from the curve of 45% RH.
By computing the galactic density for each bucket, we get the galactic density curve of the survey versus the redshift or light-travel time.
The method of log-seismic multi-attributes density curves to reconstruct inversion and its application.
The shape of the probability density curve is symmetric (Gaussian) for a composition parameter or for a structure-insensitive property (Fig.
The press-calibration option in version 3 of CMYK Optimizer enables prepress operators to use the Tonal Value Increase, Neutral Print Density Curve, or ICC based method to calibrate presses according to ISO 12647-2/3 and GRACoL specifications.
The density curve shows a sigmoid function shape at all composite-foaming experiments: having an induction time, the nucleation starts and the number of bubbles increases.
Mathematical formulas have been derived for characterizing the terrain in terms of the dimension of its power spectral density curve. Also, the slope of the line relating the elevation profile detrending (1) length to some power of the detrended root mean squared (RMS) (2) value is used.
A key end-result or benefit of this dramatic areal density curve is that disc drive manufacturers have also been able to drive down the cost of the disc drives themselves because they can offer higher capacity disc drives using fewer platters, heads, and mechanical parts.

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