Question

Heights (in inches) of 35 students of a class in given below. Classify the following data in a discrete frequency series

58	60	72	68	58	55	58	72	55	68	66	60
60	55	76	66	58	72	68	60	55	68	55	58
62	66	72	58	60	68	55	58	65	72	68

Answer 1

In the form of frequency distribution, the given data can be arranged as follows.

Height (in inches)	Tally Marks	Frequency
55 58 60 62 65 66 68 72	$\bcancel{\mathrm{{\rm I}{\rm I}{\rm I}{\rm I}}\mathrm{{\rm I}}}$ $\bcancel{\mathrm{{\rm I}{\rm I}{\rm I}{\rm I}}\mathrm{{\rm I}}}\mathrm{{\rm I}}$ $\bcancel{\mathrm{{\rm I}{\rm I}{\rm I}{\rm I}}}$ $\mathrm{{\rm I}}$ $\mathrm{{\rm I}}$ $\mathrm{{\rm I}{\rm I}{\rm I}}$ $\bcancel{\mathrm{{\rm I}{\rm I}{\rm I}{\rm I}}\mathrm{{\rm I}}}$ $\bcancel{\mathrm{{\rm I}{\rm I}{\rm I}{\rm I}}\mathrm{{\rm I}}}$	6 7 5 1 1 3 6 6
		$\sum _{}f=35$