Answer Happy

1.1 Let A and B be two events of the same sample space If P(A) -0.2. P(B) - 0.2 and P(ANB) - 0.1, then: P(AUB) - [5marks) 1.2 let A and B be two events of the same sample space. If P(AB) -0.3 and P(ANB) -0.5, then: P(A) - (5marks] 1.3 let A and B be two events of the same sample space It A and B are independent and P(A) - 0.5 and PlanB) -0.3, then: P(B) - [5marks] 1.4 let A and B be two events of the same sample space. If P(A/B) - P(A) then the events A and B are always: (No answer givan) [5marks] 1.5. The 60% of the staff members of a department are nationals and the rest internationals. The 20% of the nationals and the 70% of the internationals are Assistant Professors We pick randomly an Assistant Professor, what is the probability that (she is a nationale [10marks)