If the probability that a student is not a swimmer is 1/5, then the probability that out of 5 students one is swimmer is

\[\frac{4}{5}{{\left( \frac{1}{5} \right)}^{4}}\]

\[^{5}{{C}_{1}}{{\left( \frac{4}{5} \right)}^{4}}\left( \frac{1}{5} \right)\]

\[^{5}{{C}_{1}}\,\frac{4}{5}\,{{\left( \frac{1}{5} \right)}^{4}}\]

If the probability that a student is not a swimmer is 1/5, then the pr

1.	If the probability that a student is not a swimmer is 1/5, then the probability that out of 5 students one is swimmer is
A.	\[^{5}{{C}_{1}}{{\left( \frac{4}{5} \right)}^{4}}\left( \frac{1}{5} \right)\]
B.	\[^{5}{{C}_{1}}\,\frac{4}{5}\,{{\left( \frac{1}{5} \right)}^{4}}\]
C.	\[\frac{4}{5}{{\left( \frac{1}{5} \right)}^{4}}\]
D.	None of these
Answer» C. \[\frac{4}{5}{{\left( \frac{1}{5} \right)}^{4}}\]

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If the probability that a student is not a swimmer is 1/5, then the probability that out of 5 students one is swimmer is

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