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Statistics is the study of the collection, organization, analysis, and interpretation of data.

0 votes
1 answer
78 views

What does it mean when one model fit the data better than does a comptitor model?

I'm trying to review MLE (maximum likelihood estimation). What does it mean when one model fit the data better than does a comptitor model?
gmotree's user avatar
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1 vote
1 answer
21k views

What does standard deviation of noise 1 mean?

In theory of noise,Typically, the standard deviation of noise has 1 and mean has 0. I think that the reason of noise mean has 0 that we can assume that all noise signal go to zero when we sum it all. …
gmotree's user avatar
  • 651
5 votes
1 answer
116 views

Concept About Estimated Standard Deviation

I am looking for the concept about how to estimate standard deviation. Actually I'm not sure how can I get a concept the estimate standard deviation ? If you know the concept, then would you let me kn …
gmotree's user avatar
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1 vote
1 answer
802 views

What Do We Expect Likelihood Function to Be Used For?

In my understanding, I let make a example. For example, you can see in the following picture. Consequently, We want to find ^sigma. and We have already known the observation data(which is random …
gmotree's user avatar
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