Explain the Three Time Estimates Used to Characterize Uncertainty of Activity

question 22

Essay

Explain the three time estimates used to characterize uncertainty of activity times in the Program Evaluation and Review Technique (PERT) procedure.

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Definitions:

\(d = \frac { 3 } { 7 }\)

Represents a specific value of the variable d, which is equal to the fraction three-sevenths.

\(d = 4\)

An equation representing that the value of the variable \(d\) is equal to 4.

\(a _ { 1 }\)

Often represents the first term in a sequence or series in mathematics, particularly in formulas involving arithmetic or geometric sequences.

\(a _ { k + 1 }\)

An element in a sequence, described as the next term (k+1) following the kth term.