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Other things remaining the same, the higher the current exchange rate, the larger is the expected profit from buying dollars.
Margin of error
An indicator of the precision of an estimate, representing the range within which the true population parameter is expected to lie with a certain confidence level.
Confidence interval
A reach of numerical outputs, from sampling statistics, with the potential to cover the hidden value of a population parameter.
True proportion
The actual ratio or fraction of individuals or items within a population that possesses a particular characteristic.
Random sample
A sample drawn from a population in such a way that every member of the population has an equal chance of being selected.
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