1. Margin of error

2. Bootstrapping The margin of error is half of the interval.

3. Central Limit Theorem

4. Margin of error of the mean 95% Approximately

5. Margin of error of a proportion The greatest margin of error occurs when

6. Margin of error of a proportion Rule of thumb becomes

7. Margin of error of a proportion It should only be applied when the probability is between 0.3 and 0.7

8. Margin of error for differences If the results are from the same survey or poll: Margin error of difference = 2 x Margin of error of the Poll

9. Margin of error for differences If the results are from two independent surveys or polls: Margin error of difference = 1.5 x Average of error of each Poll