All Questions
Tagged with event-horizon-telescope units
1
question
1
vote
1
answer
795
views
What does it mean when there are two plus-or-minus signs for a measurement?
As far as I know, the plus-or-minus sign is used to indicate the statistical margin of error of a measurement. But what does it mean when there are two plus-or-minus signs in the same measurement?
...
- 481