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IIBA CBDA Exam - Topic 2 Question 37 Discussion

Actual exam question for IIBA's CBDA exam
Question #: 37
Topic #: 2
[All CBDA Questions]

A data scientist is performing statistical analysis and is interested in graphically depicting the data set according to the associated quartiles Minimum, First Quartile, Median, Second Quartile, Third Quartile. Which technique would allow for the display of this statistical five number summary?

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Suggested Answer: D

A box plot is the technique that would allow for the display of the statistical five number summary, because it is a technique that shows the distribution of a data set using a rectangular box and whiskers. A box plot can help the data scientist visualize the minimum, maximum, median, first quartile, and third quartile of the data set, as well as any outliers or skewness. A box plot can also help the data scientist compare the variation and symmetry of different groups or categories of data. Options A, B, and C are not suitable for displaying the statistical five number summary, because they are techniques that show the frequency, relationship, or density of the data, but not the quartiles or outliers. Reference:

* Business Analysis Certification in Data Analytics, CBDA | IIBA, CBDA Competencies, Domain 3: Analyze Data

* Understanding the Guide to Business Data Analytics, page 18

* 16 Best Types of Charts and Graphs for Data Visualization [+ Guide]


by Izetta at Jul 07, 2025, 03:45 PM

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Val
3 months ago
Wait, why not a scatter plot? Isn't that useful too?
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Zachary
3 months ago
Totally agree, box plots show that summary perfectly.
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Amber
3 months ago
Box plot is the way to go for quartiles!
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Stephania
4 months ago
Gaussian distribution doesn't fit this at all.
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Alison
4 months ago
I thought a multivariate histogram would work better, but maybe not?
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Timmy
4 months ago
Box plots seem to be the go-to for this kind of analysis, but I wonder if there are other options that could work as well.
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Gracia
4 months ago
I’m a bit confused; I thought scatter plots could show distributions too, but now I’m not sure if they display quartiles specifically.
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Margurite
4 months ago
I remember practicing with similar questions, and I feel like the box plot was always highlighted for showing quartiles effectively.
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Rosio
5 months ago
I think a box plot is the right choice here since it visually represents the five-number summary, but I'm not entirely sure.
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William
5 months ago
The box plot is the way to go here. It's designed specifically for displaying that five-number summary in a clear, concise way.
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Deangelo
5 months ago
I'm leaning towards the box plot, but I want to double-check the other options just to be sure I'm not missing something.
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Lillian
5 months ago
Box plot for sure. That's the classic technique for visualizing the quartiles and other key statistics of a data set.
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Cheryll
5 months ago
Hmm, I'm a bit unsure here. Could it also be a multivariate histogram? I'll have to think this through carefully.
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Kimberlie
6 months ago
I'm pretty confident this is a box plot. That's the perfect way to display the five-number summary of the data set.
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Georgeanna
7 months ago
Box plot, no doubt. It's like the data scientist's version of the 'Where's Waldo?' game, but way more useful.
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Roslyn
6 months ago
Box plot is definitely the way to go for that kind of data visualization.
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Tamar
7 months ago
Box plot all the way! It's the Goldilocks of data visualization - not too simple, not too complex, just right for this task.
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Gerardo
7 months ago
Hmm, I was thinking a multivariate histogram, but a box plot makes more sense. It's like a data scientist's Swiss Army knife!
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Troy
6 months ago
A) Gaussian distribution
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Luisa
8 months ago
A box plot seems like the perfect way to visualize that five-number summary. It's a classic statistical tool for the job.
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Annette
7 months ago
I agree, a box plot would be the best choice for displaying the five-number summary.
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Curt
8 months ago
I'm not sure, but I think a Scatter plot could also work for this.
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Belen
8 months ago
I agree with Ryan, a Box plot would be the best way to display the five number summary.
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Ryan
8 months ago
I think the answer is D) Box plot.
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