class interval


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Related to class interval: Class mark

class interval

[¦klas ′int·ər·vəl]
(statistics)
One of several convenient intervals into which the values of the variate of a frequency distribution may be grouped.
References in periodicals archive ?
02 width of the class interval by fractioning the highest value by the k parameter and by rounding the result to centimetres.
06 width of the class interval according to the (12) formula:
For the Poisson distribution, the value of p is 1, as only 'm' referring to the average arrival of vehicles per class interval is estimated for defining the distribution.
Studies were divided into three class intervals (ie, three groups of studies of different levels of 'quality,' low, medium and high).
The histogram bars can be held to a constant width as in a traditional histogram, or they can each have the width associated with the class interval it presents.
The bar width can either be proportional to the class interval or constant.
There are also some curious choices in terms of the class intervals themselves.
Table 1 shows the class intervals of word lengths in number of syllables per word in the speeches of college students in 1999 and in the speeches of two groups of college students in 1979.
NB: Size class intervals for the Nora classification are approximate because of conversion from diamond sieve numbers.
Aggregating continuous data into a limited number of class intervals introduces encoding error by distorting the original data distribution.
2003) suggested that exploration can be conducted in the context of multi-criteria class intervals for a single choropleth map.