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If a fair coin is tossed $n$ times, the probability of any exact pattern (like all heads) is:
A$(1/2)^n$
B$1/n$
C$n/2^n$
D$n(1/2)$
Answer & Solution
Correct answer: A. $(1/2)^n$
Each toss independent with $p = 1/2$. Specific sequence of $n$ outcomes has probability $(1/2)^n$.
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