A fail coin is tossed N times. The probability that head does not turn up in any of the tosses is
A. $${\left( {\frac{1}{2}} \right)^{{\text{N}} - 1}}$$
B. $$1 - {\left( {\frac{1}{2}} \right)^{{\text{N}} - 1}}$$
C. $${\left( {\frac{1}{2}} \right)^{\text{N}}}$$
D. $$1 - {\left( {\frac{1}{2}} \right)^{\text{N}}}$$
Answer: Option C

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