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Inclusive Method and Exclusive Method

Construct a f...

Question

Construct a frequency distribution with a class interval of 4 on exclusive basis for the following data:

91, 94, 111, 121, 95, 103, 99, 110, 100, 101, 92, 105, 110, 111, 93, 96, 98, 106, 94, 115

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Solution

$\begin{matrix} C.I. & Tally Bars & f 90 - 94 & | | | & 3 94 - 98 & | | | | & 4 98 - 102 & | | | | & 4 102 - 106 & | | & 2 106 - 110 & | & 1 110 - 114 & | | | | & 4 114 - 118 & | & 1 118 - 122 & | & 1 20 \end{matrix}$

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