You are a newly employed data scientist working at Google!

Your team is responsible for analysing user engagement. One of the key metrics your team tracks is the number of daily active users (DAUs) across different regions.

You have the dataset, google_dau, which contains the following columns:

Date: Date of the observation (e.g. 2024-07-01, 2024-07-02...)
Region: Region of the users (North America, Europe, Asia)
DAUs: Number of daily active users (e.g. 10000, 11000...)

What code best matches the following graph (assuming you have loaded the necessary packages)?

Question

You are a newly employed data scientist working at Google!

Your team is responsible for analysing user engagement. One of the key metrics your team tracks is the number of daily active users (DAUs) across different regions.

You have the dataset, google_dau, which contains the following columns:

Date: Date of the observation (e.g. 2024-07-01, 2024-07-02...)
Region: Region of the users (North America, Europe, Asia)
DAUs: Number of daily active users (e.g. 10000, 11000...)

What code best matches the following graph (assuming you have loaded the necessary packages)?

BlackTom AI · Accepted Answer

Question restatement: You are analyzing a dataset google_dau with columns Date, Region, and DAUs, and you need to identify which code best matches the described graph.

Option analysis:
Option provided: ggplot(google_dau, aes(x = Region, y = DAUs)) + 
   geom_boxplot()

Why this option could be correct:
- The mapping aes(x = Region, y = DAUs) places Region on the x-axis and DAUs on the y-axis, which aligns with a plot that compares DAU distributions across different regions.
- The addition of geom_boxplot() indicates a box-and-whisker representation, which is a standard way to summarize distributions of a numeric variable (DAUs) across categorical groups (Region).
- If the intended graph shows three vertical box plots (one per region) with median and spread information, this code matches that structure exactly.

Why this option might be insufficient or require caution:
- If the original graph is intended to show a different visualization (for example, a bar chart of mean DAUs per region, or a time-series line chart by date within region), then this exact code would not reproduce it.
- The code does not specify any theme, labels beyond the defaults, or any handling for potential overplotting; depending on the dataset size, a boxplot may display many observations per region, which is typical but worth noting.
- If the goal were to facet by Date or region-to-region comparisons with jittered points, another geom like geom_boxplot() with position adjustments or a combination of geoms would be more appropriate.

In summary, given a typical interpretation of a boxplot comparing DAUs across regions, this code is the standard and appropriate choice for producing that type of visualization. If the intended graph used a different visualization approach, a variant with additional geoms or themes might be required.

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