Random variable

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Random variable

A function that assigns a real number to each and every possible outcome of a random experiment.

Random Variable

In statistics, a variable expressing all possible outcomes of a set of circumstances. It is important in probability density function and probability distribution.
References in periodicals archive ?
Normal, random variations produce results with significant deviations from both the predicted values and the mean values.
i] is the spatially correlated random variation with mean 0 and variance [[sigma].
First, random variation in the overall NMCM rate was achieved by removing the largest contributor in terms of NMCM time (look phase inspections).
Estimates of a property's value based on a single comparable sale could be biased by the random variation in the observed sale price of the comparable.
After Darwin, there was a better hypothesis: random variation and natural selection.
As we can see from Figure 5, SPC insight allows management to separate normal or random variation from specialcause variation.
This means it overreacts to what might have been simply random variation.
Possible reasons for this, according to the report, are changes in facility quality, changes in resident acuity, changes in state survey agency practice, or just random variation.
Chemical Mutogenesis, used for many years in plant breeding, introduces more random variation than the technology available today.
But as soon as you put a human being into the equation, forget about random variation.