Çözüldü Combinatorics - Binomial Distribution - Summation Symbol

Slightly different wording of the test adaptation for a solved question by MathType:

If differently colored n balls are distributed in two equal boxes under the condition that neither box will be empty, how many different ways could these balls be arranged?

A) 2^n
B) 2^n - 1
C) 2^n - 2
D) 2^(n - 1) - 1
E) 2^(n - 1) - 2


https://i.ibb.co/6BM1HyJ/Combinatorics.png
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