Test: ACT Science

Error bars are utilized in scientific graphs to show the difference between data points. If the error bars of data points overlap then they are not statistically independent from one another; therefore, they can be considered to be similar to one another. Only data points that possess non-overlapping error bars are sufficient to make or support a scientific conclusion.

12.

Error_bars_bar_graph

Are samples 7 and 8 statistically valid?

No, the error bars overlap.

No, there is no error bar overlap.

Yes, the error bars overlap.

Yes, there is no error bar overlap.

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