Final answer:
In mathematics, efficiency is related to exponential growth. The number of comparisons increases by a power of 2 for every additional element added to the set.
Step-by-step explanation:
In mathematics, the efficiency you are referring to is related to the concept of exponential growth. When the number of comparisons increases by a power of 2 of the number of elements in a set, it means that the number of comparisons doubles for every additional element added to the set. This can be represented by the equation:
Number of comparisons = 2^N
where N is the number of elements in the set. For example, if the set has 3 elements, the number of comparisons would be 2^3 = 8.