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Margin of Error

Author: Alexander Greene

This packet will discuss the concept of margin of error, how it is used in the media, and how it relates to confidence intervals.

Some terms that should be known before you begin this packet are:

sample and population
confidence level
confidence interval

Source: Greene

Margin of Error

This powerpoint discusses margin of error, how it is used in the media, how it relates to confidence intervals, and gives a hypothetical example of its use.

Source: Greene

Margin of Error in 2008 Presidential Campaign

This clip talks about how close the presidential election was in 2008, and how the margin of error can be taken into consideration when talking about leads in polls.

Source: CBS/Youtube