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what is the formula for determining a pert weighted average. Calculate the standard deviation of the project s E which is equal to the square root of the variance V E. Pert Estimate Optimistic 4 X Most Likely Pessimistic6.
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What is the formula for determining a PERT weighted average. The Mean in Figure 2 for each activity is calculated by using the PERT formula. The basic formula for a weighted average where the weights add up to 1 is x1 w1 x2 w2 x3 w3 and so on where x is each number in your set and w is the corresponding weighting factor.
The weighted average is calculated as the sum of all of the values multiplied by their weights divided by the sum of all of the weights.
The weights should be represented as a percentage of the total relevancy. PERT calculates a weighted average as the PERT estimate by using the formula. The bigger the standard deviation the wider the spread of the values. O 4M P 6.
