Margin of error
How far a measured proportion or average is likely to be from the truth, based on its standard error. For a proportion the SE is √(p(1 − p) ÷ n), and about 1.96 SEs gives a 95% range.
How far a measured proportion or average is likely to be from the truth, based on its standard error. For a proportion the SE is √(p(1 − p) ÷ n), and about 1.96 SEs gives a 95% range.