Correct Answer - Option 3 : Both 1 and 2.
Concept:
Arithmetic Mean (A. M.): The Arithmetic Mean of a set of n numbers is given by:
A. M. = \(\rm \frac{\sum a_i}{n}\).
Geometric Mean (G. M.): The Geometric Mean of a set of n numbers is given by:
G. M. = \(\rm \sqrt[n]{\prod a_i}\).
Calculation:
Both the Arithmetic and Geometric Means use all the data for their calculations.