random variable

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ran·dom var·i·a·ble

a variable that may assume a set of values, each with fixed probabilities or probability densities (its distribution), in such a way that the total probability assigned to the distribution is unity; the random variable may be discrete, continuous, or mixed discrete-continuous.
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References in periodicals archive ?
Therefore, for nearly every day on the track of both polar parties, the data are independent and identically distributed.
, [Z.sub.Bn] are identically distributed by symmetry.
In what follows we will consider the large deviations principle for the case of a sequence of independent and identically distributed (i.i.d.) [R.sup.l]-valued random variables [X.sub.1], [X.sub.2],....
While identically distributed [e.sub.i] over types is plausible in the context of student achievement, it is impossible in the case of binary outcomes such as mortality rates for patients.
Let {[X.sub.i], i [less than or equal to] 1} be a sequence of negatively associated identically distributed random variables satisfying the condition (2.1).
Let {[X.sub.k], k = 1,2,3, ...} be a sequence of independent and identically distributed (i.i.d.) nonnegative random variables with common distribution function F, F [member of] T.
Granted that the query frequencies of domain names are independent and identically distributed, we give the maximum likelihood estimation (MLE) of the scaling parameter [beta].
This indicates that returns are not independent identically distributed and the volatility clustering phenomenon is present in the data.
Accordingly, we use three simultaneous systems of two equations where the observed changes in risk and in the ratios of the three funding sources considered are assumed to have two components: a discretionary component and an exogenous, random, independent and identically distributed (iid) shock.
Considering a sequence of independent and identically distributed random
We assume that the particles [[XI].sub.1], ..., [[XI].sub.n] are independent and identically distributed. Denote by So a random particle with the same distribution as the [[XI].sub.1].