# <span lang="EN-GB

The minimum bill is Rupees 24

And, the maximum bill is Rupees 95

Range = Maximum bill – Minimum bill

= 95 – 24 = 71

Given, class interval is 70-79. So, class size = 79 – 70

= 9

Therefore, Number of classes = =

= 7.80 = 8

The cumulative frequency distribution table is as follows:

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