What the box-and-whiskers plot used to show is: b. median.
What is median?
Median can be defined as the process of determining the middle number based on the data given and this can be determine when the data is listed from the minimum number to the maximum number.
Box and whiskers plot tend to show the following :
- Data charts with upper quartile range.
- Data charts with lower quartile range .
- Data charts with interquartile range.
Therefore the correct option is B.
Learn more about median here:https://brainly.com/question/26151333
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