solution

a.      
Suppose an instructor decides to add five points to every student’s exam
score in a class. What effect would this have on the five-number summary? On
the inter-quartile range? Explain.

 b. Suppose an instructor decides
to add five points only to the exam score for the highest-scoring student in
the class. What effect would this have on the five-number summary? On the
inter-quartile range? Explain.

c. Suppose an instructor decides
to add five points only to the exam score for the lowest-scoring student in the
class. What effect would this have on the five-number summary? On the
inter-quartile range? Explain

 
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