Occurrence And Isotopes Of H2

Occurrence of an event

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The odds in favour of occurrence of an event are 2:5 . Find the probability of the occurrence of the event.

The probability of the non-occurrence of an event is 2/7 . Find the probability of the occurrence of the event.

If 5/14 is the probability of occurrence of an event, find (i) the odds in favour of its occurrence (ii) the odds against its occurrence

The odds in favour of occurrence of an event are 5 : 12 . Find the probability of the occurrence of this event.

If the odds against the occurrence of an event be 4 : 7 , find the probability of the occurrence of the event.