Question

An experiment succeed twice as it fails then the possibility that in next 4 trials there will be 3 success is  ​

Answer 1

Answer:

Solution: An experiment succeeds twice as often as it fails. i.e. the probability of its success is 2/3 and the probability of its failure is 1/3. ... And as 4 of them are successes, they have a probability of 2/3 and the one that is a failure will have a probability of 1/3.