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List P consists of the 5 numbers $$3^{n}$$, $$3^{n+1}$$, $$3^{n+2}$$, $$3^{n+3}$$, $$3^{n+4}$$ are five numbers, where n is a positive integer.
Quantity A
The average (arithmetic mean) of the numbers in P
Quantity B
The median of the numbers in P
A显示答案
以上解析由 考满分老师提供。
