Point estimation with beers

1. Marvin Froeder

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. TASK:
WE CONVEY:
 Drink one can
 One can = 2 point

4. TASK:
ESTIMATETO
 Drink 3 cans
 3 cans = 6 points

5. TASK:
ESTIMATETO
 Drink 12 cans
 Twelve cans = 24 points

6. TASK:
ESTIMATETO
 Drink THE can
 The can = 30 points

7. TASK:
MORE OR LESSWORKTHEN A
CAN?
 Drink a juice
 One juice = 1 point

8. TASK:
MORE OR LESSWORKTHEN A
CAN?
 Drink 2 shots
 2 shots = 2 points

9. TASK:
CALL ME

10. SIZE AS CHANGE

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. TASK -> 6 POINTS WHO? (ME)
History 2 hours ;)
Velocity:
3 points per hour

13. TASK -> 6 POINTS WHO?
History 3,5 hours
Velocity:
1,72 points per hour

14. TASK -> 6 POINTS WHO?
History ¿?

15. TASK ~ 1 POINTS WHO? (ME)
History: ???
Know velocity: 3 points per
hour
Risk: Salty beer

16. TASK ~ 1 POINTS WHO? (ME)
History: ???
Velocity: 3 points per hour
Risks: What is that?

17. TASK ~ 52 POINTS WHO? (TEAM)
History 1 hour
Team velocity:
52 points per hour
Individual velocity:
5 points per hour

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. VELOCITY = HISTORY /TIME

20. MUST CHANGE ON EACH SPRINT (LAP)

21. CHANGES ASTEAM CHANGES

22. SLOW DOWN ON INCERTANTIES