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Question
For drawing a frequency polygon of a continous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abcissae are respectively ______.
Options
upper limits of the classes
lower limits of the classes
class marks of the classes
upper limits of perceeding classes
Solution
For drawing a frequency polygon of a continous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abcissae are respectively class marks of the classes.
Explanation:
Class marks i.e., the mid-point of the classes are abscissa of the points, which we plot for frequency polygon.
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