1. There are three (and only three) paths through a network (project), each with a probability of completion in less than 24 months as indicated:

a. S-a-b-F P1(b. S- d-e-F P2(c. S- g-h-F P3(If the tasks are independent, what is the probability of the network being completed within 24 months? Note: S is the start node, F is the finish node.

2. You have been assigned to estimate the cost of installing fiber optic cable in a country. Fortunately, you have done a number of similar projects in this area in the past and you have accumulated the following parametric cost estimates based on this experience:

Mobilization/demobilization Cost = \$10,000

Buried cable construction:

Cost per kilometer = \$10,000 Sand

Cost per kilometer = \$17,500 Sand & Clay

Cost per 100 meters = \$ 5,500 Rock

Cost per kilometer = \$ 7,500

Cost per Road Crossing = \$12,500

Cost per pipeline Crossing = \$ 5,000

The scope of the new project is as follows:

Predominately sand 150 km

Predominately sand & clay 100 km

Rock 500 meters