Final answer:
The efficientSelectionShuffle() method is used to shuffle the elements of an array and the maximum variation refers to the maximum number of different outcomes. The maximum variation is determined by the number of elements in the array and can be calculated using factorial.
Step-by-step explanation:
The efficientSelectionShuffle() method is used to shuffle the elements of an array in a way that every possible permutation is equally likely. The maximum variation of this method refers to the maximum number of different possible outcomes that can occur when shuffling the array using efficientSelectionShuffle().
In order to determine the maximum variation, we need to consider the number of elements in the array. Let's say the array has n elements. The maximum variation would be n! (n factorial), which represents the total number of possible permutations of the elements.
For example, if we have an array with 4 elements, the maximum variation would be 4! = 4 x 3 x 2 x 1 = 24. This means that when shuffling the array using efficientSelectionShuffle(), there are 24 different possible outcomes.