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Unit 7: Project Scheduling
The probability associated with Z= +1 is 0.84134. This is a strong probability, and indicates that Notes
the odds are 16 to 3 that the project will be completed by the due date.
If the probability of an event is p, the odds for its occurrence are a to b, where:
a p 0.84134 16
= = =
b 1 − p 0.15866 3
Self Assessment
Fill in the blanks:
9. Activities with zero Total float are on the ....................... Path.
10. ....................... is the spare time available when all preceding activities occur at the earliest
possible times.
11. The ....................... distribution is appropriate for calculation of activity durations.
12. ....................... assumes that the expected length of a project is simply the sum of their
separate expected lengths.
13. The sum of the ....................... of the activity times along the critical path.
14. The square root ....................... gives us the standard deviation of the project length.
15. A random variable drawn from a Normal Distribution has ....................... probability of
falling within one standard deviation of the distribution average.
16. The ....................... of the variance of the activity times along the critical path.
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