A problem in mathematics is given to three students and their respective probability of solving the problem is 1/2, 1/3 and 1/4. Probability that the problem is solved is
As we learnt in
Complementary events -
Let S be the sample space for a random experiment and let E be the event then complement of event E is
where E' contains those element which E does not contain.
Probability that quostion is not solved=
P (question is solved) =