class interval

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Related to class intervals: relative frequency

class interval

n
(Statistics) statistics one of the intervals into which the range of a variable of a distribution is divided, esp one of the divisions of the base line of a bar chart or histogram
Translations

class interval

n (Math) → intervallo di classe
References in periodicals archive ?
The rent intervals from this initial classification were used as class intervals for plotting the histogram.
In the above formula, df refers to the number of degrees of freedom, I is the number of class intervals being compared during analysis and p is the number of parameters estimated for defining the distribution.
322 log n, where K is the number of class intervals and n is the number of values in the data set.
Each of these variables was recorded for the students during their classes as a percent of the total class intervals.
Studies were divided into three class intervals (ie, three groups of studies of different levels of 'quality,' low, medium and high).
Because the categorization processes of the human brain limits the number of graphic values that can be discerned simultaneously, in a traditional choropleth maps the data distribution is broken into a small number of class intervals (usually between four and seven) so that only a limited number of graphic values need to be discerned in the map.
There are also some curious choices in terms of the class intervals themselves.
Therefore, these cases were distributed in the first two class intervals for further analysis, namely 61 cases to the first interval (10-50 [micro]g/L) and 60 cases to the second class interval (51-99 [micro]g/L).
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.
Efficiency improvements to the estimator, by Bakker (1997), demonstrated that to use equation (6) in a frequency context it is necessary to divide the density's domain into K class intervals, such that the probability associated with the kth class interval is: