Dictionary of British Education
A term used in statistics to indicate a measure of variability among the values of a frequency distribution.
For example, when indicating the range or scatter of scores from the mean or average, it is sometimes convenient to express the extent of scatter in terms of standard deviations. When discussing a range of scores it is rarely sufficient to know only the average or mean score; it is also important to know the standard deviation or ‘scatter’ of marks. (See also standardised, z-scores)
This is the complete article, containing 86 words
(approx. 1 page at 300 words per page).
View More Summaries on Standard deviation
