Standard Score - Standardizing in Mathematical Statistics

Standardizing in Mathematical Statistics

Further information: Normalization (statistics)

In mathematical statistics, a random variable X is standardized by subtracting its expected value and dividing the difference by its standard deviation

If the random variable under consideration is the sample mean of a random sample of X:

then the standardized version is

See normalization (statistics) for other forms of normalization.

Read more about this topic:  Standard Score

Famous quotes containing the words mathematical and/or statistics:

    It is by a mathematical point only that we are wise, as the sailor or the fugitive slave keeps the polestar in his eye; but that is sufficient guidance for all our life. We may not arrive at our port within a calculable period, but we would preserve the true course.
    Henry David Thoreau (1817–1862)

    We already have the statistics for the future: the growth percentages of pollution, overpopulation, desertification. The future is already in place.
    Günther Grass (b. 1927)