(Three Activities with Uncertainty) A small project consists of three activities: A, B and C. To start activity C, both A and B need to be complete.

(Three Activities with Uncertainty) A small project consists of three activities: A, B and C. To start activity C, both A and B need to be complete. Activity A takes 3 days with a probability of 50% and 5 days with probability of 50 %, and so does Activity B. Activity C takes 1 day. What is the expected completion time of the project?