The median of the following data is \(50\). Find the values of \(p\) and \(q\), if sum of all the frequency is \(100\).
 
Marks \(20-30\) \(30-40\) \(40-50\) \(50-60\) \(60-70\) \(70-80\) \(80-90\)
\(f\) \(p\) 13 23 \(20\) \(q\) 8 4
 
Answer:
 
The value of \(p\) \(=\)  .
 
The value of \(q\) \(=\)  .