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Problems dealing with various probabilities, be it coin tossing or game winning.
Consider a string of n quaternary digits, randomly created.

Evaluate the probability that in this string the quantity
of an a priori defined digit, say zero, is even.

Double check your result by
either
a. direct count and comparison (e.g. n=4)
or
b. getting the same result by two distinct methods.

(No Solution Yet, 4 Comments) Submitted on 2017-08-09 by Ady TZIDON   
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