Question

For drawing a frequency polygon of a continuous frequency distribution, we plot the points whose ordinates are the frequencies of the respective classes and abscissae are respectively
(a) upper limits of the classes
(b) lower limits of the classes
(c) class marks of the classes
(d) upper limits of preceding classes

Answer 1

(c) class marks of the classes

To draw a frequency polygon of the continuous frequency distribution, we plot the class marks of the classes on the x-axis.