- we can plot error bars with SE or SD, but what is the difference?
- normally bars are ±SD or ±SE but why might we double the size?
- why is this a valuable visualisation tool?
- we represent this visually on scatter, line, and bar charts with y-axis and sometimes x-axis error bars.
- what text must go in the caption for the error bars to make sense to the reader?
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![normal distribution with std devs](images/stddevnormaldist.gif) fig: normal distribution with standard deviations
![standard error distribution](images/F1.large.jpg) fig: normal distribution with standard error
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