One of the mysteries of the English language finally explained.
Used to define the margin of error of an estimate or calculation.‘the coral was estimated to be 840 years old, plus or minus 40 years’
- ‘Its nominal dates are 418.7 to 416.0 million years ago, plus or minus 2.7 million years at either end.’
- ‘The survey has a margin of error of plus or minus 3.8 percentage points.’
- ‘Don't be alarmed if your oven is off by plus or minus 50 degrees.’
- ‘Since the poll's error margin is plus or minus 4 percentage points, the race is virtually tied.’
- ‘This prediction is uncertain to within plus or minus two days.’
- ‘I was working to stay plus or minus 300 feet from the assigned altitude because of the up-and-down drafts.’
- ‘It had a margin of error of plus or minus 4.7 percentage points.’
- ‘The poll surveyed 1,016 adults; the margin of error is plus or minus 3 percentage points.’
- ‘The flight service says its count is accurate within a range of plus or minus 10 percent.’
- ‘Keep in mind that most power supplies inside the computers can reliably handle only plus or minus 10 percent in voltage fluctuation.’
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