normal distribution

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normal distribution

n.
A theoretical frequency distribution for a random variable, characterized by a bell-shaped curve symmetrical about its mean. Also called Gaussian distribution.

normal distribution

n
(Statistics) statistics a continuous distribution of a random variable with its mean, median, and mode equal, the probability density function of which is given by (exp-[(x–μ)2/2σ2]/σ√(2π)) where μ is the mean and σ2 the variance. Also called: Gaussian distribution

nor′mal distribu′tion


n.
a theoretical frequency distribution represented by a normal curve. Also called Gaussian distribution.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.normal distribution - a theoretical distribution with finite mean and variance
distribution, statistical distribution - (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence
statistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters
References in periodicals archive ?
It is obvious that the error distribution has two main characteristics, which remains true to other wind farms through statistical analysis:
The prediction error of the LSSVM model both before and after the correction of the wind farm in Spain is shown in Figure 4(a), and the error distribution is shown in figure 4(b1) and 4(b2).
Medina et al (4) extended the Freese method when the model has CB in its predictions: hypothesis tests and maximum anticipated error for the alternative proposal, and the confidence interval for a quantile of the error distribution.
Absolute Corrected Percentage Errors at Selected Percentiles of the Error Distribution by Population Size Category.
The phase error distribution is divided into the four regions as shown in Fig 1.
A statistical summary is provided in Table 1 and the error distribution statistics for these models is shown in Table 2.
This study examines the sensitivity of day-of-the-week effect, also known as weekday effect, to the specification of error distribution assumption in both mean and conditional variances of several foreign currencies daily returns.
1) software package were used which is capable to give three non-equilibrium production models which are Schaefer (1954), Fox (1970) and Pella and Tomlinson (1969) with three error distribution assumption (normal, log-normal and gamma).
In this study we propose, as the most satisfactory and simplest solution to obtain, the calculation of M-estimators in order to obtaining a location index of the absolute percentage error distribution which is resistant or insensitive to the presence of outlier values.
It can be observed that the error distribution within the [+ or -] 5 dB window dominates the frequency counts.
Furthermore, the above methods require specific knowledge about the NLOS error distribution, and a complex training process, making them impractical for widespread adoption in indoor localization.