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If A(i=1,2,3….n) are n independent event...

If A(i=1,2,3….n) are n independent events with P(A) = `(1)/(1+i)` for each `i` , then the probability that none of A, occur is :

A

`(n-1)/(n+1)`

B

`(n)/(n+1)`

C

`(1)/(n+2)`

D

`(1)/(n+1)`

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The correct Answer is:
D
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AAKASH SERIES-PROBABILITY-Exercise-II
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  3. If A(i=1,2,3….n) are n independent events with P(A) = (1)/(1+i) for ea...

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  4. A and B are two independent events. The probability that both A and B ...

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  7. A speaks truth in 75% of the cases and B in 80% of the cases. Then the...

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  8. The probability that A speaks truth is 4/5 , while this probability fo...

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  10. A salesman has a 60% chance of making a sale to each customer. The beh...

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  13. One bag A contains 5 white and 3 black balls. Another bag B contains 6...

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  14. Three groups of children contain 3 girls and one boy , 2 girls and 2 b...

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  15. Three persons A,B,C in order cut a pack of cards replacing them after ...

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  16. In the above problem the ratio of the probabilities of their winning i...

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  17. A man alternately tosses a coin and throws a die continuously . The pr...

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  18. A biased coin with probability p, 0 lt p lt 1 of heads is tossed until...

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  19. On a toss of two dice, A throws a total of 5. Then the probability tha...

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  20. A and B throw a pair of dice. A wins if the throws 6 before B throws 7...

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