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Answer:
Explanation:
The median is the value corresponding to the line inside the box. Looking at the box plot, the line is between 8 and 9. Thus,
Median = 8.5
To find the measure of variability, we would find the interquartile range, IQR
IQR = third quartile(Q3) - first quartile(Q1)
The first quartile is the value corresponding to the left end of the box. From the box plot, it is between 5 and 6. Thus,
Q1 = 5.5
The third quartile is the value corresponding to the right end of the box. From the box plot,
Q3 = 11
Thus,
IQR = 11 - 5.5
IQR = 5.5
The range is the difference between the minimum and maximum values. On the box plot,
maximum value = 13
minimum value = 1
Range = 13 - 1
Range = 12