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Question 127 - CBDA discussion

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A private school has decided to include bullet charts in students' end of year performance report. It will depict the student's score against the highest score achieved in that grade, and the qualitative category that the student's score falls under. Should a column chart be used instead?

A.
Both charts are insufficient in meeting the requirements of a student score card
Answers
A.
Both charts are insufficient in meeting the requirements of a student score card
B.
Both charts can be used as a column chart is a comparable alternative to a bullet chart
Answers
B.
Both charts can be used as a column chart is a comparable alternative to a bullet chart
C.
Yes, a column chart would be a better option to depict all three criteria in one chart
Answers
C.
Yes, a column chart would be a better option to depict all three criteria in one chart
D.
No, a bullet chart is a good option as it will depict all three criteria in one chart
Answers
D.
No, a bullet chart is a good option as it will depict all three criteria in one chart
Suggested answer: D

Explanation:

A bullet chart is a type of bar chart that shows progress towards a goal or performance against a reference line1.It consists of a bar representing the featured measure, a reference line denoting a target or threshold, and a background with qualitative ranges (such as poor, fair, good, excellent)2. In this case, the featured measure is the student's score, the reference line is the highest score achieved in that grade, and the background ranges are the qualitative categories that the student's score falls under. A bullet chart is a good option for this use case because it can display all three criteria in one chart, using minimal space and avoiding clutter. A column chart, on the other hand, would require either multiple columns for each student to show the score, the highest score, and the category, or a separate legend to map the colors of the columns to the categories.This would make the chart less effective in communicating the information and more difficult to compare across students.

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asked 18/09/2024
Salvatore Buscio
28 questions
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