Question

write the formula to find the median of a grouped data explain the terms involved in it?​

Answer 1

Answer:

This formula is used to find the median in a group data which is located in the median class. Median, m = L + [ (N/2 – F) / f ]C L means lower boundary of the median class N means sum of frequencies F means cumulative frequency before the median class.

Answer 2

Answer:

l+{ (n/2 - cf)÷ f} × h

where 'l' is the lower limit of the median class

'n' is the total number of observation

'cf' is the cumulative frequency preceding median class

'f' is the frequency of the median class

'h' is the class mark