Correct Answer - Option 1 : 16
Concept:
Mode: The mode of the set of data is the value that appears most often.
For example, Data: 2, 5, 5, 6, 7, 4, 3
Mode = 5
Calculation:
We have 4, 16, 64, 16, 66, 24, 16, 20.
Clearly, 16 is most occurring in the given observation.
So, the mode is 16.