A Project Consists of Nine Major Activities,as Shown

question 3

Essay

A project consists of nine major activities,as shown.There are three separate paths in the network: a-c-f,b-d-g,and e-h-i.
(i)What is expected project duration time?
(ii)Determine the probability that the project will take more than 35 weeks to complete.(All durations are in weeks.)
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Definitions:

Activity Level

A characteristic of individuals, often observed from early childhood, describing the degree of physical energy and movement, varying from very active to less active.

Folic Acid

A B vitamin that is crucial in the production of red blood cells and for the development of a healthy brain and spinal cord, particularly important during early pregnancy.

Neural Tube

An embryonic structure that later develops into the brain and spinal cord.

Fetus's Bones

The developing skeletal structure within the fetus, which begins as cartilage and undergoes ossification to become bone by birth.