Transcript Plots, Graphs, and Pictures Thought Questions

Plots, Graphs, and Pictures
“Out of the clutter, find simplicity” – Albert Einstein
Thought Questions
1. Here is a plot that has some problems. Give two reasons why this is not a good plot.
2. Suppose you had a set of data representing two measurement variables—namely, height and
weight—for each of 100 people.
How could you put that information into a plot, graph, or picture that illustrated the relationship
between the two measurements for each person?
Plots, Graphs, and Pictures
Two and three dimensional charts
Plots, Graphs, and Pictures
Two and three dimensional charts
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Why is this a better graphical representation?
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Plots, Graphs, and Pictures
Nightingale Graph
preventable diseases (in blue), the results of wounds (in red), due to other causes (in black).
Plots, Graphs, and Pictures
Two and three dimensional charts
Plots, Graphs, and Pictures
Energy Data
Plots, Graphs, and Pictures
Energy Data
Plots, Graphs, and Pictures
Area Judgments
Population of Cities at the end of the Eighteen Century
Plots, Graphs, and Pictures
Population of Cities at the end of the Eighteen Century
Plots, Graphs, and Pictures
Area Judgments
Plots, Graphs, and Pictures
Line Judgments
Plots, Graphs, and Pictures
Line Graphs
Used Car Price
Mountain Height Data
Plots, Graphs, and Pictures
Misleading Line Graphs
Carbon Dioxide by Year
Carbon Dioxide by Year: Aspect Ratio Changed
Plots, Graphs, and Pictures
Misleading Bar Graphs
Plots, Graphs, and Pictures
Misleading Bar Graphs
Plots, Graphs, and Pictures
Plots, Graphs, and Pictures
Plots, Graphs, and Pictures
Challenger Shuttle Disaster
Plots, Graphs, and Pictures
The morning of 27 January 1986 was particularly cold in the USA.
Several engineers raised concerns over the low temperature at Kennedy Space Center and what
effect it would have on the space shuttle, particularly the rubber O-rings in the Solid Rocket
Boosters (SRBs). No one had tested the O-rings at such low temperatures. However management
needed to get the mission underway, as soon as possible. The night before, the decision was
made to go ahead with the launch.
As the SRBs ignited, the hot gases inside immediately caused the O-rings to expand in the casing joints to
prevent flame leaking out sideways. Because the rings were frozen, during this launch they took a
fraction of a second longer to expand. One set of O-rings on the right hand SRB immediately burnt
away, releasing a puff of black smoke immediately after lift-off.
Challenger disaster
Plots, Graphs, and Pictures
Plots, Graphs, and Pictures
Data Visualization Tool
This application uses FBI world data on GDP, Population, Infant Mortality etc.
To get started, click the Viewers Manager on the left and select "Data analysis" from the 2x2 saved
layouts. Then from the active manager dropdown menu, choose "Full Pane" for tab navigation
through the different ways the data is presented.
You can apply filters in the graphs view of the data (click button to left of question mark button in
the graph view). You can drag a slide rule to filter countries by GDP, Population, Infant Mortality.