How to set up successful graphs!

TAILS Teachers’s Favorite Singer T - Title

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

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

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.

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

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.

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

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?

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

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.

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

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?

Correlation