The Analytics Edge

7.2 Visualizing the World: An Introduction to Visualization

Quick Question

In this quick question, we’ll be asking you questions about the following three plots, that we saw in Video 1. We’ll refer to them as the “Scatterplot”, the “Histogram”, and the “US Map”.

The Scatterplot:

The Histogram:

The US Map:

In the Scatterplot, what are the geometric objects?

Bars close

Points check

Lines close

Polygons close

Boxes close

Check   Show Solution

Explanation The geometric objects for the Scatterplot are points, for the Histogram are bars, and for the US Map are polygons (the States). All three plots defined colors in the plot.

In the Histogram, what are the geometric objects?

Bars check

Points close

Lines close

Polygons close

Boxes close

Check   Show Solution

Explanation The geometric objects for the Scatterplot are points, for the Histogram are bars, and for the US Map are polygons (the States). All three plots defined colors in the plot.

In the US Map, what are the geometric objects?

Bars close

Points close

Lines close

Polygons check

Boxes close

Check   Show Solution

Explanation The geometric objects for the Scatterplot are points, for the Histogram are bars, and for the US Map are polygons (the States). All three plots defined colors in the plot.

All three of these plots defined a particular aesthetic property. What is it?

The x-axis label. close

The y-axis label. close

Different shapes for different types of observations. close

Colors. check

A legend. close

Check   Show Solution

Explanation The geometric objects for the Scatterplot are points, for the Histogram are bars, and for the US Map are polygons (the States). All three plots defined colors in the plot.

• Back: Video 3: What is Data Visualization?
• Continue: Video 4: Basic Scatterplots Using ggplot