Uncertainty and the mean and standard deviation

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
2 replies · 5K views
e2m2a
Messages
354
Reaction score
13
I am an independent researcher ready to compile data from an experiment. I have a set of measurements that include the uncertainties of measurement. If I calculate the mean for the set (and thus the standard deviation) do I need to include the uncertainties when doing this calculation?
 

Discussion

Physics news on Phys.org
No, you do not want to include the measurement errors, as long as these are random errors.
 
EnumaElish said:
No, you do not want to include the measurement errors, as long as these are random errors.

Why not?
 

Similar threads

High School Why is standard deviation biased compared to variance?

  • Agent Smith
  • · Replies 42 ·
  • Set Theory, Logic, Probability, Statistics
2
Replies
42

Undergrad Error bars in Excel (standard deviation, standard error, percentage)

  • fog37
  • · Replies 4 ·
  • Set Theory, Logic, Probability, Statistics
Replies
4

High School Is there a relationship between the harmonic mean and the standard deviation?

  • Feynstein100
  • · Replies 5 ·
  • Set Theory, Logic, Probability, Statistics
Replies
5

Undergrad Basic standard deviation calculation

  • Graham87
  • · Replies 2 ·
  • Set Theory, Logic, Probability, Statistics
Replies
2

Why Is Standard Deviation Calculated as 10√2 Instead of 14?

  • logicandtruth
  • · Replies 6 ·
  • Set Theory, Logic, Probability, Statistics
Replies
6

Mean and standard deviation of combined absences for 100 boys and 50 girls

  • mesh
  • · Replies 1 ·
  • Set Theory, Logic, Probability, Statistics
Replies
1

Finding the proportion of IQs above 130 with mean 100 and standard deviation 15

  • karush
  • · Replies 2 ·
  • Set Theory, Logic, Probability, Statistics
Replies
2

Undergrad Confidence interval on Standard deviation

  • iVenky
  • · Replies 4 ·
  • Set Theory, Logic, Probability, Statistics
Replies
4

Undergrad Correctly Scaling the Standard Deviation for Scaled Measurements

  • camilleon
  • · Replies 5 ·
  • Set Theory, Logic, Probability, Statistics
Replies
5

Undergrad Standardizing measurements to center PDF on mean with standard deviation intervals

  • tomtomtom1
  • · Replies 7 ·
  • Set Theory, Logic, Probability, Statistics
Replies
7