ExampleConsider a small project that involves the following activities.Completion Times (days)PrecedingActivityActivityOptimistic (to) Most Likely (tm)Pessimistic (tp)A67418a41520Db, c45Ea16181. Determine the mean value of time and the variance for each activity.2. Use the expected times from (a) to find the critical path.3. Determine the probability of completing the project in 18 days4. Determine the probability of completing the project in 26 days

1.) The expression for the mean value is given as mean value=to+4tm+tp6 The expression for variance…

Consider a small project that involves the following activities. Completion Times (days) Preceding Activity Activity Optimistic (to) Most Likely (tm) Pessimistic (tp) A 5 6 7 4 18 4 15 20 D b, c 5 a 16 18

Consider a small project that involves the following activities. Completion Times (days) Preceding Activity Activity Optimistic (to) Most Likely (tm) Pessimistic (tp) A 5 6 7 4 18 4 15 20 D b, c 5 a 16 18

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Mapping

Mapping is the process of representing the surface of the earth, objects on it, and the relative positions of the objects, to a suitable scale. In mapping, a large area of land is measured, surveyed, and plotted. The details of the objects present in the nearby surrounding area are located using conventional signs. All these processes are carried out on a flat paper known as a map.

Question

Example
Consider a small project that involves the following activities.
Completion Times (days)
Preceding
Activity
Activity
Optimistic (to) Most Likely (tm)
Pessimistic (tp)
A
6
7
4
18
a
4
15
20
D
b, c
4
5
E
a
16
18
1. Determine the mean value of time and the variance for each activity.
2. Use the expected times from (a) to find the critical path.
3. Determine the probability of completing the project in 18 days
4. Determine the probability of completing the project in 26 days

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