In a sample survey of a University Community, the following table shows the percentage distribution of the number of members per house hold
(begin{array}{cc} text{No. of members per household} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & text{Total} \ hline text{No. of households} & 3 & 12 & 15 & 28 & 21 & 10 & 7 & 4 & 100end{array})
What is the median?
(begin{array}{cc} text{No. of members per household} & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & text{Total} \ hline text{No. of households} & 3 & 12 & 15 & 28 & 21 & 10 & 7 & 4 & 100end{array})
What is the median?

A.
4 
B.
3 
C.
5 
D.
4.5 
E.
None
Correct Answer: Option A
Explanation
(begin{array}{cc} x & f \hline 1 & 3\ 2 & 13\3 & 15\ 4 & 28\ 5 & 21\ 6 & 10\ 7 & 7\ 8 & 4end{array})
Median is half of total frequency = 50th term
4 falls in the range = 4