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Grade Distribution Assignment | Professional Writing Services

Author:
January 18th, 2020

The five-number summary below shows the grade distribution of a STAT 200 quiz for a sample of 500 students.

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Answer each question based on the given information, and explain your answer in each case.

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(a) What is the minimum in the grade distribution?

(b) Which quarter has the smallest spread of data? What is that spread?

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(c) Find the interquartile range (IQR) in the grade distribution.

(d) Are there more students in the score band of 20 – 40 or 60 – 80? Why?

(e) Can the average score be determined based on the given information? Why or why not?

 

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