Logarithm properties:

According to this, we can get:
This is a plain and simple answer. No distributive property here!
68 ÷ 4 = 17
Mean (Average) 48
Median 47.5
Range 66
Mode 72, appeared 2 times
Geometric Mean 41.680398411848
Largest 81
Smallest 15
Sum 480
Count 10
There are three elements in that set.