A data analyst at a retail company needs to visualize the relationship between advertising spend (in dollars) and monthly sales (in dollars) for 200 stores. The goal is to show whether higher spend is associated with higher sales and to identify any outliers. Which chart type is most appropriate?

A scatter plot with advertising spend on the x-axis and sales on the y-axis

A line chart with months on the x-axis and sales on the y-axis

A bar chart of average sales per store

Python InstitutePCAD - Certified Associate in Data Analytics with Python

Domain 5Objective 1

Data Visualization Techniques PCAD-31 Practice Questions (Page 5)

Part of the Data Communication and Visualization domain, which accounts for 10.4% of the PCAD-31 exam. Python Institute does not publish an official question count, but from its 60-minute exam (~25–40 total, ~3–3 in this domain), expect 2–2 from this objective — we provide 39 practice questions to prepare you well beyond it. (estimate)

39questions here

8free pages

12concepts

10.4%of the exam

Questions 21–25

21foundation · easy
Which Matplotlib function is used to add an arrow to a plot for emphasis?
Select an answer first
22foundation · easy
Which Matplotlib function adds plain text at a specific (x, y) coordinate on the plot?
Select an answer first
23foundation · easy
Which Matplotlib function is used to apply a predefined style sheet to plots?
Select an answer first
24application · medium
A data analyst at a retail company needs to visualize the relationship between advertising spend (in dollars) and monthly sales (in dollars) for 200 stores. The goal is to show whether higher spend is associated with higher sales and to identify any outliers. Which chart type is most appropriate?
Select an answer first
25foundation · easy
You have a dataset with a categorical variable 'Product Category' and a numeric variable 'Sales'. Which chart type is most appropriate to compare sales across categories?
Select an answer first

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Data Visualization Techniques PCAD-31 Practice Questions (Page 5)

Questions 21–25

Which Matplotlib function is used to add an arrow to a plot for emphasis?

Which Matplotlib function adds plain text at a specific (x, y) coordinate on the plot?

Which Matplotlib function is used to apply a predefined style sheet to plots?

A data analyst at a retail company needs to visualize the relationship between advertising spend (in dollars) and monthly sales (in dollars) for 200 stores. The goal is to show whether higher spend is associated with higher sales and to identify any outliers. Which chart type is most appropriate?

You have a dataset with a categorical variable 'Product Category' and a numeric variable 'Sales'. Which chart type is most appropriate to compare sales across categories?

Keep studying — Data Communication and Visualization