- In one computer class, 20 students got an 'A', 12 students got a 'B, 10 students got a 'C' and 8 students got a 'D’. a. If the teacher were to make a pie chart to display the percentage of students by grade, what percentage of the pie chart would be devoted to the slice that represents the students who got an A'? b. Besides a pie chart, specify one additional graphical summary that would be appropriate to represent this variable (student grade in computer class).

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