Closed williamlai2 closed 1 year ago
"Standard error" is statistics jargon for "estimated standard deviation of an estimate" or "uncertainty of an estimate." Thus, we use the term "standard error" in the first paragraph above because we are referring to an estimate, and we use the term "standard deviation" in the second paragraph because we are referring to a probability distribution.
We could have simply used the term "standard deviation" throughout, but then this could perhaps have led to confusion if people thought that 0.17 was the standard deviation of the measurements. The term "standard error" is used to make it clear that we're talking about the standard deviation of an estimate.
Thanks for the explanation.
Hi. this might be an error, though also might not. It is in the exercises for Chapter 5 (p.77)
In the first bit, we are working with standard error, but in (a) it is standard deviation.