1. OBJECTIVE
I will use tables and graphs to organize and read data.

2. Most Watched Sports Per Year (in millions of viewers)
Using a Table
The following table shows the number of viewers (in millions) for the four most watched sports.
Most Watched Sports Per Year (in millions of viewers)
YEAR
1990
1995
2000
2005
Basketball
180.2
154.7
165.3
172.6
Football
145.1
153.7
151.8
160.9
Baseball
193.0
190.5
172.4
155.8
Soccer
122.4
128.7
132.5
134.9

3. Most Watched Sports Per Year (in millions of viewers)
Using a Table
In what 5-year period did total viewing decrease the most?
Add two rows (total and change)
Most Watched Sports Per Year (in millions of viewers)
YEAR
1990
1995
2000
2005
Total
640.7
627.6
622.0
624.2
Change -
-13.1
-5.6
2.2
The total number of sports viewers decreased
most from 1990 to 1995.

4. Using a Bar Graph to Organize Data
Bar Graph - one way to organize data in which vertical or horizontal bars represent a number for each category (used when there are categories)

5. Using a Bar Graph to Organize Data
What was misleading about the previous bar graph?
The Scale

6. Average Cost of Making a Movie (millions of dollars)
Making a Line Graph
Average Cost of Making a Movie (millions of dollars)
Year
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
Average Cost ($)
11.8
14.0
16.7
17.5
20.0
18.1
23.3
26.8
26.1
29.9

7. Making a Line Graph
Line Graph - used to organize data, typically to show change in data over time

8. Questions
In which years did the average cost decrease from the previous year?
In which year did the average cost decrease the most from the previous year?
1988, 1991
1988