Data displays can be used to compare two sets of data in the following ways:
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They quickly illustrate measures of center. - This allows for easy comparison of the central tendencies (like mean, median) of both data sets.
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They show trends in data that can be compared. - Visual representations can help identify patterns and trends across the two data sets.
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They display measures of variability for each data set. - This can indicate how spread out the data points are in each set, which is crucial for comparison.
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They easily show the mean of each data set. - Visuals can effectively highlight the means, making it straightforward to compare them.
The option "They identify all the data points in each data set" can be useful, but it's typically more about individual data points rather than direct comparisons between datasets. Therefore, it may not be as directly relevant for the purpose of assessing comparative measures.
In summary, the most relevant ways data displays can be used to compare two sets of data include illustrating measures of center, showing trends, displaying measures of variability, and easily showing the mean of each data set.