Points estimation

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Point estimation with beers

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Points estimation

  1. 1. Marvin Froeder
  2. 2.  Use samples to best guess “In statistics, point estimation involves the use of sample data to calculate a single value (known as a statistic) which is to serve as a "best guess" or "best estimate" of an unknown (fixed or random) population parameter.”
  3. 3. TASK: WE CONVEY:  Drink one can  One can = 2 point
  4. 4. TASK: ESTIMATETO  Drink 3 cans  3 cans = 6 points
  5. 5. TASK: ESTIMATETO  Drink 12 cans  Twelve cans = 24 points
  6. 6. TASK: ESTIMATETO  Drink THE can  The can = 30 points
  7. 7. TASK: MORE OR LESSWORKTHEN A CAN?  Drink a juice  One juice = 1 point
  8. 8. TASK: MORE OR LESSWORKTHEN A CAN?  Drink 2 shots  2 shots = 2 points
  9. 9. TASK: CALL ME
  10. 10. SIZE AS CHANGE
  11. 11.  points per time unit “Velocity is a measurement of how much the team gets done in a sprint.Velocity is what actually got done in the last iteration not what is planned.”
  12. 12. TASK -> 6 POINTS WHO? (ME) History 2 hours ;) Velocity: 3 points per hour
  13. 13. TASK -> 6 POINTS WHO? History 3,5 hours Velocity: 1,72 points per hour
  14. 14. TASK -> 6 POINTS WHO? History ¿?
  15. 15. TASK ~ 1 POINTS WHO? (ME) History: ??? Know velocity: 3 points per hour Risk: Salty beer
  16. 16. TASK ~ 1 POINTS WHO? (ME) History: ??? Velocity: 3 points per hour Risks: What is that?
  17. 17. TASK ~ 52 POINTS WHO? (TEAM) History 1 hour Team velocity: 52 points per hour Individual velocity: 5 points per hour
  18. 18. TASK ~ 52 POINTS WHO? 10 hours per day x 2 days Velocity: 26 points per day? Velocity: 2,6 points per hour 20,8 points per regular day
  19. 19. VELOCITY = HISTORY /TIME
  20. 20. MUST CHANGE ON EACH SPRINT (LAP)
  21. 21. CHANGES ASTEAM CHANGES
  22. 22. SLOW DOWN ON INCERTANTIES

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