PMP® Formulas
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Many people who take the PMP® exam say the most difficult part is the calculations and formulas. This quiz will help solidify your understanding of those PMP® concepts! Good luck!
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Question 1 of 32
1. Question
1 pointsWhat is the correct formula for Number of Communication Channels?
Correct
Remember, n should also include the project manager as well as all the members in the team.
Incorrect
The correct formula is: n (n1)/2
Remember, n should also include the project manager as well as all the members in the team.

Question 2 of 32
2. Question
1 pointsWhat is the correct formula for Schedule Performance Index (SPI)
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Incorrect
The correct formula is: Earned Value / Planned Value or EV/PV for short.

Question 3 of 32
3. Question
1 pointsWhat is the correct formula for Cost Performance Index (CPI)
Correct
Incorrect
The correct formula is: Earned Value / Actual Cost or EV / AC for short.

Question 4 of 32
4. Question
1 pointsWhat is the correct formula for Schedule Variance (SV)
Correct
Incorrect
The correct formula is: Earned Value – Planned Value or EV / PV for short.

Question 5 of 32
5. Question
1 pointsWhat is the correct formula for Cost Variance (CV)
Correct
Incorrect
The correct formula is: Earned Value – Actual Cost or EV / AC for short.

Question 6 of 32
6. Question
1 pointsWhat is the correct formula for Estimate to Completion
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Incorrect
The correct formula is: Estimate at Completion – Actual Cost or EAC – AC for short.

Question 7 of 32
7. Question
1 pointsWhat is the correct formula for Variance at Completion
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Incorrect
The correct formula is: Budget at completion – Estimate at Completion or BAC – EAC for short.

Question 8 of 32
8. Question
1 pointsWhat is the correct formula for a PERT Estimation
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Incorrect
The correct formula is: (Optimistic estimate + 4(Most Likely estimate) + Pessimistic estimate) / 6 or (O + 4M + P) / 6 for short.

Question 9 of 32
9. Question
1 pointsWhat is the correct formula for Standard Deviation
Correct
Incorrect
The correct formula is: (Pessimistic estimate – Optimistic estimate) / 6 or (P – O) / 6 for short.

Question 10 of 32
10. Question
1 pointsWhat is the correct formula for Float/Slack
Correct
You’re right! Remember, Float and Slack mean the same thing. Also, the formula begins with LATE. If you remember this, you will never get the formula wrong!
Late Start – Early Start or Late Finish – Early Finish
Incorrect
The correct formula is either: Late Start – Early Start or Late Finish – Early Finish
Remember, Float and Slack mean the same thing. Also, the formula begins with LATE. If you remember this, you will never get the formula wrong!

Question 11 of 32
11. Question
1 pointsWhat is the correct formula for ToComplete Performance Index (TCPI)
Correct
Incorrect
The correct formula is: (Budget At Completion – Earned Value) / (Budget At Completion – Actual Cost) or (BAC – EV)/ (BAC – AC) for short.
Remember, TCPI is calculated by dividing the work remaining on the project by the money remaining. For example:
BAC = $300
AC = $180
EV = $120So, the worth of remaining work is $180 ($300 – $120) and the money remaining is $120 ($300 – $180). Now, to calculate TCPI:
($300 – $120) / ($300 – $180)
($180 / $120)
TCPI = 1.5
Hint
Work Remaining / Money Remaining

Question 12 of 32
12. Question
1 pointsWhat is the correct formula for Estimate at Completion (EAC) if Future Performance Will Be the Same as Past Performance
Correct
Incorrect
The correct formula is: Budget at completion (BAC) – Cost Performance Index or BAC – CPI for short.

Question 13 of 32
13. Question
1 pointsWhat is the correct formula for Estimate at Completion (EAC) if Future Performance Will Be the Same as Planned Rate or Budgeted Rate
Correct
Incorrect
The correct formula is: Actual Cost + (Budget at completion – Earned Value) or AC + (BAC – EV) for short.

Question 14 of 32
14. Question
1 pointsWhat is the correct formula for Estimate at Completion (EAC) if Future Performance Will Be Influenced by Both Cost Performance and Schedule Performance
Correct
Incorrect
The correct formula is: AC + [(Budget at completion – Earned Value)/(Cost Performance Index * Schedule Performance Index)] or AC + [(BAC EV)/(CPI*SPI)] for short.

Question 15 of 32
15. Question
1 pointsWhat is the correct formula for Estimate at Completion (EAC) if Future Performance Will Be Influenced by Some Proportion of Schedule as well as Cost Performance
Correct
Incorrect
The correct formula is: AC + (Budget at completion – Earned Value) / [(0.8 * Cost Performance Index) + (0.2 * Schedule Performance Index)] or AC + (BAC – EV) / [(0.8 * CPI) + (0.2 * SPI)] for short.

Question 16 of 32
16. Question
1 pointsWhile calculating Variance at Completion (BAC – EAC), your result is 180. You are:
Correct
Incorrect

Question 17 of 32
17. Question
1 pointsFor the Firewall project, you have an early start of 3, late start of 5, and an early finish of 25. What is the float of the project?
Correct
Incorrect
The value of early finish is not needed in this example. Remember, the formula for Float/Slack both start with LATE. Late Start – Early Start or Late Finish – Early Finish.
In this example, Float/Slack can be calculated as Late Start (5) – Early Start (3). The answer is 2.
Hint
Are all three values needed?

Question 18 of 32
18. Question
1 pointsYou are managing a kitchen renovation project. This project has a total budget of $1500 and is currently 40% complete. The project is a 3 month project and you planned to have $500 worth of completed work each month. You are evaluating the status at the end of the first month.
What is the Schedule Variance (SV) and Schedule Performance Index (SPI)?
Correct
Incorrect
In this scenario, the BAC is $1500, EV is $600, and PV is $500.
To determine the Schedule Variance (SV) we use the formula Earned Value – Planned Value (EV – PV). Here are EV is $600 and our PV is $500. The result is 100 and we are currently ahead of schedule.
The Schedule Performance Index (SPI) formula is Earned Value / Planned Value (EV / PV). So, ($600 / $500) = 1.2 which indicates that we are 20% ahead of schedule.
Hint
Remember your formulas:
SV = EV – PV
SPI = EV / PV 
Question 19 of 32
19. Question
1 pointsWhat is the range of a ‘Rough Order of Magnitude’ estimate?
Correct
Incorrect

Question 20 of 32
20. Question
1 pointsWhat is the range of a ‘Final’ estimate?
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Question 21 of 32
21. Question
1 pointsWhat is the formula for PTA?
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Question 22 of 32
22. Question
1 pointsWhat is the value of 1 sigma?
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Question 23 of 32
23. Question
1 pointsWhat is the value of 2 sigma?
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Question 24 of 32
24. Question
1 pointsWhat is the value of 3 sigma?
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Question 25 of 32
25. Question
1 pointsWhat is the value of 6 sigma?
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Incorrect

Question 26 of 32
26. Question
1 pointsWhen is Sunk Cost a factor in making project decisions?
Correct
Sunk cost is never a factor in making project decisions.
Incorrect
Sunk cost is never a factor in making project decisions.

Question 27 of 32
27. Question
1 pointsWhat is the formula for Expected Monetary Value (EMV)?
Correct
Expected Monetary Value is statistical technique that calculates the probable financial results of events.
Incorrect
Expected Monetary Value is statistical technique that calculates the probable financial results of events.

Question 28 of 32
28. Question
1 pointsWhat is the formula for Point of Total Assumption (PTA)?
Correct
PTA is the contract price above which the seller bears all the loss of a cost overrun. The result is a monetary value. When reached, the seller covers all the cost risk beyond.
Incorrect
PTA is the contract price above which the seller bears all the loss of a cost overrun. The result is a monetary value. When reached, the seller covers all the cost risk beyond.

Question 29 of 32
29. Question
1 pointsThe following chart contains information about the tasks in a project.
Based on the chart, what is the cost performance index (CPI) for Task 2?
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Incorrect

Question 30 of 32
30. Question
1 pointsThe following chart contains information about the tasks in a project.
Based on the chart, what is the schedule variance (SV) for Task 8?
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Incorrect

Question 31 of 32
31. Question
1 pointsThe following chart contains information about the tasks in a project.
Based on the chart, what is the cost variance (CV) for Task 6?
Correct
Incorrect

Question 32 of 32
32. Question
1 pointsThe following chart contains information about the tasks in a project.
Based on the chart, what is the schedule performance index (SPI) for Task 4?
Correct
Incorrect