Define the following 1 class limit 2 frequency curve ,range,loss of information,class mark
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formula of class mark = upper limit+lower limit ÷2
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class limit may be defined as the minimum value and the maximum value the class interval may contain.
The lower class limit of a class is the smallest data value that can go into the class. ...
The upper class limit of a class is the largest data value that can go into the class
Frequency curve is obtained by joining the points of frequency polygon by a freehand smoothed curve
The difference between the lowest and highest values is know as range
Class mark is the midpoint of a class interval.
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