For independent events \[{{A}_{1}},\,{{A}_{2}},\,..........,{{A}_{n}},\] \[P({{A}_{i}})=\frac{1}{i+1},\]\[i=1,\,\,2,\,......,\,\,n.\] Then the probability that none of the event will occur, is

For independent events \[{{A}_{1}},\,{{A}_{2}},\,..........,{{A}_{n}},

1.	For independent events \[{{A}_{1}},\,{{A}_{2}},\,..........,{{A}_{n}},\] \[P({{A}_{i}})=\frac{1}{i+1},\]\[i=1,\,\,2,\,......,\,\,n.\] Then the probability that none of the event will occur, is
A.	\[\frac{n}{n+1}\]
B.	\[\frac{n-1}{n+1}\]
C.	\[\frac{1}{n+1}\]
D.	None of these
Answer» D. None of these

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For independent events \[{{A}_{1}},\,{{A}_{2}},\,..........,{{A}_{n}},\] \[P({{A}_{i}})=\frac{1}{i+1},\]\[i=1,\,\,2,\,......,\,\,n.\] Then the probability that none of the event will occur, is

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