Mrs. Phillips is grading the semester exams for her Advanced Algebra course. She wants a visual representation of how the grades are spread throughout the class. It would also be helpful to know where the upper 25% of grades are located. Below is the box-and-whisker plot she designed.
http://learn.flvs.net/webdav/assessment_images/educator_advalgebra_v10/02_01_10.gif
Explain, using complete sentences, whether or not this is the most appropriate format for representing this data and why. If it is not the best format, explain which format should have been used instead.

Question

Mrs. Phillips is grading the semester exams for her Advanced Algebra course. She wants a visual representation of how the grades are spread throughout the class. It would also be helpful to know where the upper 25% of grades are located. Below is the box-and-whisker plot she designed. 
http://learn.flvs.net/webdav/assessment_images/educator_advalgebra_v10/02_01_10.gif
Explain, using complete sentences, whether or not this is the most appropriate format for representing this data and why. If it is not the best format, explain which format should have been used instead.