1. How to set up successful graphs!

2. TAILS
Teachers’s Favorite Singer
T - Title

3. T - Title A - Axis TAILS Teachers’s Favorite Singer
Y Axis = Dependent Variable
X Axis = Independent Variable

4. Decide on an appropriate scale for each axis.
TAILS
Teachers’s Favorite Singer
Decide on an appropriate scale for each axis.
Choose a scale that lets you make the graph as large as possible for your paper and data
T - Title
A – Axis
S – Scale

5. How to determine scale
Favorite Singer
Number of Teachers
Toby Keith 22
Madonna 15
Elvis 11
Sting 5
Sinatra 2
Scale is determined by your highest & lowest number.
In this case your scale would be from 2 – 22.

6. T – Title A – Axis I – Interval S – Scale TAILS
Teachers’s Favorite Singer
Interval is the amount of space between one number and the next on the graph.
Choose an interval that lets you make the graph as large as possible for your paper and data
T – Title
A – Axis
I – Interval
S – Scale

7. How to determine Intervals
Favorite Singer
Number of Teachers
Toby Keith 22
Madonna 15
Elvis 11
Sting 5
Sinatra 2
The interval is decided by your scale.
In this case your scale would be from 2 – 22 and you want the scale to fit the graph.
The best interval would be to go by 5’s.

8. T – Title A – Axis I – Interval S – Scale TAILS
Teachers’s Favorite Singer
T – Title
A – Axis
I – Interval
S – Scale 25 20 15 10 5

9. Teachers’s Favorite Singer
TAILS
Label your Y Axis. What do those numbers mean?
T – Title
A – Axis
I – Interval
L – Labels
S – Scale
Teachers’s Favorite Singer 25 20 15
Number of Teachers 10 5
LABEL your bars or data points
Toby Keith
Madonna
Elvis
Sting
Sinatra
Singers
Give the bars a general label. What do those words mean?

10. When to use… Bar graphs Used to identify trends
Allows us to compare data like amounts or frequency or categories
Allow us to make generalizations about the data
Help us see differences in data
Line Graphs
For continuous data
useful for showing trends over time

11. Pie (Circle) Graphs A circle graph is used to show how a part of something relates to the whole. This kind of graph is needed to show percentages effectively.

12. Scatter plots are similar to line graphs in that they use horizontal and vertical axes to plot data points.
Scatter plots show how much one variable is affected by another. The relationship between two variables is called their correlation .
Scatter plots usually consist of a large body of data. The closer the data points, the higher the correlation between the two variables, or the stronger the relationship.
Scatter Plot

13. Using the scatter plot how many people studied for 7 hours?
Questions:
Using the scatter plot how many people studied for 7 hours?
What were the two grades of the people who studied for 2 hours?
Two people earned a score of 90%. How many hours did they study?

14. Correlation