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