1. LSP 120
Localized Trendlines

2. Let’s Interpret This Graph
What would a trendline look like?

3. Let’s Interpret This Graph
What would a trendline look like?

4. Let’s Interpret This Graph
But what about
this downward
trend?

5. Let’s Interpret This Graph
Maybe we should
do a trendline for
just this downward
segment.

6. Let’s Interpret This Graph
Is the Localized Trendline more accurate
than the overall trendline?

7. Watch Out
Be careful when using the data sets from the government – they may have to be “cleaned up” first
Let’s open the file Table 207 from the QRC website under Files  Additional Directories: 2010 US Statistical Abstract  Education  All Levels of Education  School Enrollments - Table 214.