Find the cumulative frequency for each class interval
Compute (N), the total frequency
Calculate (N/2)
Identify the median class as the class whose cumulative frequency first exceeds (N/2)
Use the formula ( text{Median} = L + left(frac{N/2 – c_f}{f}right) times h )
In the formula, (L) = lower boundary of the median class
In the formula, (c_f) = cumulative frequency before the median class
In the formula, (f) = frequency of the median class
In the formula, (h) = class width
Substitute the values into the formula
Calculate the median value