In the class intervals 10 –20, 20 –30, etc., respectively, 20 lies in the class __________.
In a histogram, class intervals and frequencies are taken along
__________ axis and __________ axis.
In a histogram __________ are drawn with width equal to a class
interval without leaving any gap in between.
When the number of observations is large, the observations are usually
organised in groups of equal width called __________.
The number of times a particular observation occurs in a given data is called its __________.
The difference between the upper and lower limit of a class interval is called the __________ of the class interval
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