The “margin of error” is a common summary of sampling error, referred to regularly in the media, which quantifies uncertainty about a survey result.
The margin of error can be interpreted by making use of ideas from the laws of probability or the “laws of chance”, as they are sometimes called.
Use this simple statistics calculator to calculate amount of random sampling error using (margin of error) using critical value,standard error values.
Formula:
M = Cv x Es
Where,Cv = Critical Value,
Es = Standard Error