Step 1: Prepare a table containing less than type cumulative frequency with the help of given frequencies. Step 2 : Find out the cumulative frequency to which \frac{N}{2} belongs. Class-interval of this cumulative frequency is the median class-interval
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Step 1: Prepare a table containing less than type cumulative frequency with the help of given frequencies. Step 2 : Find out the cumulative frequency to which \frac{N}{2} belongs. Class-interval of this cumulative frequency is the median class-interval