Draw a histogram to represent the following grouped frequency distribution.

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Solution

The frequency distribution table is an inclusive form. First, we must convert it to an exclusive form.
Consider the class $20 - 24, 25 - 29 .$
The lower limit of $25 - 29$ is $25$
Upper limit of $20 - 24$ is $24$
Half of the difference $= (25 - 24) / 2 = 1 / 2 = 0.5$
We should subtract $0.5$ from each lower limit and add $0.5$ to each upper limit.
The data in continuous can be tabulated as:
Hence, the histogram can be represented as:

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Draw histogram for the following frequency distribution:

Class interval :	5 – 10	10 – 15	15 – 25	25 – 45	45 – 75
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Draw a histogram to represent the following frequency distribution.

\begin{matrix} Age(in years) & Number of teachers 20 - 24 & 10 25 - 29 & 28 30 - 34 & 32 35 - 39 & 48 40 - 44 & 50 45 - 49 & 35 50 - 54 & 12 \end{matrix}

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