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Sagot :
The box-and-whisker plot for the given data is given below:
A box and whisker plot is defined as a graphical method of displaying variation in a set of data.
The results of a history test taken by 18 students: 55, 57, 58, 61, 62, 66, 68, 68, 71, 75, 75, 78, 82, 83, 85, 86, 88, 89.
Take note of how the scores are listed from lowest to highest.
The median for the given data is 73.
The Lower Quartile and the Upper Quartile would be found after that.
These represent the lower and higher halves' medians.
Lower quartile = 61.75
Upper quartile = 83.5
Make a number line. Mark your median, quartiles, and smallest and largest values.
Learn more about box-and-whisker plot here:
https://brainly.com/question/27849170
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