The size of each class into which a range of a variable is divided, as represented by the divisions of a histogram or bar chart.
〔统计〕（矩形图或柱状图中表示变量范围的）分组矩
Example sentencesExamples
However, no matter what headway distributions are used, or how accurately they are modelled, the probability density functions themselves describe the distribution of headways by sorting headways into different class intervals.
It allowed analysis according to the different grain size class intervals for a single rock specimen.
The class interval was chosen to be equal to or greater than the maximum standard deviation.
The width of each bar along the abscissa represents a class interval of 0.1, except for the first bar.
Definition of class interval in US English:
class interval
noun
Statistics
The size of each class into which a range of a variable is divided, as represented by the divisions of a histogram or bar chart.
〔统计〕（矩形图或柱状图中表示变量范围的）分组矩
Example sentencesExamples
The width of each bar along the abscissa represents a class interval of 0.1, except for the first bar.
The class interval was chosen to be equal to or greater than the maximum standard deviation.
It allowed analysis according to the different grain size class intervals for a single rock specimen.
However, no matter what headway distributions are used, or how accurately they are modelled, the probability density functions themselves describe the distribution of headways by sorting headways into different class intervals.