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Which among the following statements is incorrect?

A) In a grouped frequency distribution/ it is not possible to determine the mode by looking at the frequencies,

B)   In a grouped frequency distribution, modal class is the class which have maximum frequency.

C)  The mode of the data is a value inside the modal class

D)  Median of the grouped data can be calculated by using the formula. Median =\[l+\left( \frac{\frac{n}{2}-cf}{f} \right)\]

E)  None of these