Margin of error is a term used in Statistics to find the confidence interval. It is denoted by E.
Formula for E is:
Critical Value x Standard Deviation / (Square Root of Sample Size)
![E=critical* (s)/( √(n) )](https://img.qammunity.org/2019/formulas/mathematics/college/tmo17vx24r1ft27n9gwo8bx9fqqqsgbozr.png)
The critical value is determined by the type of test that is to be used for the given scenario and the confidence level.