To find the preparation time so that the visitors can be informed what time to be present for breakfast (or) 2. To estimate the probability of preparing breakfast within a specified amount of time. The activity times are shown on the arcs of the activity network. The activity time from Start → A (crack the eggs) is assumed to be uniformly distributed between 2 and 4 minutes; That means that all times between 2 and 4 minutes are equally likely to occur. Expected or mean time for this activity is the midpoint, 3 minutes