question_answer

The formula to calculate the median for grouped data is given below. What does letter I represent? \[{{M}_{e}}=I+\left\{ h\times \left( \frac{\frac{N}{2}-c}{f} \right) \right\}\]

A)  Lower limit of the median class

B)  Cumulative frequency of the class preceding the median class.

C)  Class size

D)  All of these

E)  None of these