skewed distribution


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Skewed distributionclick for a larger image
Fig. 28 Skewed distribution. (a) Positively skewed distribution. (b) Negatively skewed distribution.

skewed distribution

a distribution of data obtained from a sample or population which does not show the NORMAL DISTRIBUTION of a bell-shaped curve. In a normal distribution the MEAN, MEDIAN and MODE fall in the same place – the curve is symmetrical. In a positively skewed distribution (Fig. 28a) the mode and median are less than the mean, while in a negatively skewed distribution (Fig. 28b) the mean is less than the median and mode. Some population characteristics have a normal distribution, e.g. height, others may be skewed, e.g. social class among students in higher education.
References in periodicals archive ?
While having a skewed distribution does not eliminate the utility of using AUC to assess discounting in of itself, these results do highlight the importance of not assuming that normality of the data is a given.
2014) heuristic over a range of bimodal distributions as well as bell-shaped and positively skewed distributions.
R] is increased beyond this value, it does not make any significant difference to the stream matching probability due to the characteristics of the skewed distribution.
Statistical properties of winsorized mean for skewed distributions.
From here we concluded that the degrees of distribution of the amino acids are negatively skewed distribution.
The scatter diagram on the left results from the uniform distribution, whereas that on the right results from the skewed distribution.
The book tends more toward the reportorial than the analytic, and covers the diet of moral relativism, political bias, socialism, victim mascots, degradation of sex to anonymous acrobatics, religious environmentalism, attacks on belief in God, anti-American screeds, Mohammedan apologetics, anti-Semitism, and the skewed distribution of funds to certain favored student groups.
In such a skewed distribution, a standard deviation is a less useful unit of reference.
The biggest issue against land monopoly and its skewed distribution is the asymmetrical distribution of power leading to the undermining of the rule of law.
A rapid increasing population particularly of poor and small framers and increasingly skewed distribution of access to land and resource has created a much more pronounced need to move from resource based to science based agriculture, he added.
To assess the effects of variation in abundance of genotypes, we simulated two genotype frequency distributions: (1) skewed distribution, where individual were exponentially distributed among genotypes, and (2) even distribution, where there were equal numbers of individuals for all genotypes.
In the field of medical care, we began efforts to resolve the skewed distribution of doctors and began providing medical examinations for colorectal cancer free of charge, while continuing to provide medical examinations for breast cancer and cervical cancer without charge.