If the individual measurements could be viewed as approximately independent and identically distributed, then their mean could be approximated by a normal distribution.
Data from the two groups were first tested for normality and were found to be well approximated by a normal distribution.
In the relaxor single crystals, the energy barrier of phase transformations distributed over a range of field values is represented by a normal distribution of step like transformations.
Statistical variations of the diameter and length of the CNTs are modeled by a normal distribution.
The variabilities in the Paris exponent are also shown to be well characterized by a normal distribution.
Based on these curvatures, criteria are defined here that indicate whether or not an experiment will lead to estimates with distributions well approximated by a normal distribution.
This method approximates the within-study variability of the proportion by a normal distribution, which may lead to bias for several reasons.
Normality tests are used to determine whether a data set is well modeled by a normal distribution or not before testing of hypothesis for the variances.
The distribution of the total number of degree-days elapsing between July 4 and the date of diagnosis of each case was best described by a normal distribution (mean = 5243 °F, S.D. = 1047).
The second is that residuals (or noise) could often be approximated by a normal distribution.
The domain of the design variables are characterised by a normal distribution, typically comprising mean values, standard deviations and variances.
