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Suppose E and F are two events of a rand...

Suppose E and F are two events of a random experiment. If the probability of occurrence of E is `1//5` and the probability of occurrence of F given E is `1//10`. Then the probability of non-occurance of atleast one of the events E and F is

A

`1//18`

B

`1//2`

C

`49//50`

D

`1//50`

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The correct Answer is:
C
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