Question

Please help! Probability Question.
If A an B are two events with sample points drawn from the same sample space. P(A) = .4 and P(B) . 5
Is it possible that A and B are mutually exclusive?
Is it possible that A and B are not mutually exclusive?
Is it possible that A and B are complementary.
Is it possible that A and B are not complementary?
Use the sample space in problem 1 to give examples to support your answers.

(1. Problem 1 sample space: They are a, b, c, d ,e f ,g ,h i, j, k, l, m, n, o, p, q, r, s, t.)