This task asks questions about a box-and-whisker graph.
Here is a box-and-whisker plot of the salaries of 48 new graduates at Bluntley High School.
Salaries of new graduates at Bluntley High School
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a)
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What is the median salary? $ __________ |
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b)
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How many of the 48 staff have salaries below $46 000? __________ |
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c)
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The inter-quartile salary range for the staff is $ __________. |
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d)
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Another staff member has a salary of $82 000. |
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i)
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Plot this point with an asterisk (*) directly above the whisker of the graph.
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| ii) |
This point is called an "outlier".
Give a likely reason why this point is an outlier.
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