Q. 195.0( 2 Votes )

The odds against a certain event are 5 to 2 and the odds in favour of another event, independent to the former are 6 to 5. Find the probability that (i) at least one of the events will occur, and (ii) none of the events will occur.

Answer :

(i) The odds against certain event are 5 to 2



odds in favour of another event are 6 to5




Find the probability that (i) at least one of the events will occur


=1–P(none of the events will occur)




(ii) none of the events will occur.


P(none of the events will occur)




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