Comparing Graphs

1
Comparing Graphs

• There is are some fine details that you must be
  aware of when interpreting data

2
Compare these two precipitation graphs. What
conclusions can you make about the precipitation
for these two areas?
3
Compare these two precipitation graphs. What
conclusions can you make about the precipitation
for these two areas?
4
Compare these two precipitation graphs. What
conclusions can you make about the precipitation
for these two areas?
5
Now, take a look at the scale for each graph.
What do you notice?
6
Now, take a look at the scale for each graph.
What do you notice?
7
Comparison Graphing

• In order for you to accurately compare graphs of
  this nature, you must keep the scales the same.
• Otherwise, you might incorrectly analyze your
  data.
• Lets take a look at the two graphs again

8
First set of graphs with different scales for
each.
9
First set of graphs with the same scale for each.
What do you notice? How does your conclusion
change?
10
Second set of graphs with different scales for
each.
11
First set of graphs with the same scale for each.
What do you notice? How does your conclusion
change?