Question
Write down the ssteps involved in the calculation of median in continuous series.
Solution
Steps involved : (i) Arrange the series either in ascending or descending order.
(ii) If inclusive series is given convert into exclusive series.
(iii) Convert the simple frequencies into cumulative frequencies.
(iv) After that find the size of (N/2) th item.
(v) Determine the median class in which median lies.
(vi) Apply the following formula :
M = Median.
L1 = Lower limit of median group.
i = Difference between lower and upper limits of median group.
f = Frequency of median group.
m = Median number.
c = Cumulative frequency of the group preceding the group.
If the series is arranged in descending order, then the following formula will be applied :
