1. Unit 10 Lesson 7 Scatter Plots

2. Scatter Plot A scatter plot is a graph of a collection of ordered pairs (x,y). The graph looks like a bunch of dots, but some of the graphs are a general shape or move in a general direction.

3. 3 Scatter Plot The independent and dependent can be plotted on a graph called a scatter plot. By convention, the independent variable is plotted on the horizontal x-axis. The dependent variable is plotted on the vertical y-axis.

4. 4 Example of Scatter Plot A scatter plot is a graph of the ordered pairs (x,y) of numbers consisting of the independent variables, x, and the dependent variables, y. Please use excel to create a scatter plot.use excel

5. 5 Interpret a Scatter Plot The graph suggests a positive relationship between hours of studies and grades

6. Example 1: Graphing a Scatter Plot from Given Data The table shows the number of cookies in a jar from the time since they were baked. Graph a scatter plot using the given data. Use the table to make ordered pairs for the scatter plot. The x-value represents the time since the cookies were baked and the y-value represents the number of cookies left in the jar.

7. Example 1 Continued The table shows the number of cookies in a jar from the time since they were baked. Graph a scatter plot using the given data. Plot the ordered pairs.

8. Example 2 The table shows the number of points scored by a high school football team in the first four games of a season. Graph a scatter plot using the given data. Use the table to make ordered pairs for the scatter plot. The x-value represents the individual games and the y-value represents the points scored in each game. Plot the ordered pairs. Game1234 Score6214634

9. An effective way to see a relationship in data is to display the information as a __________________. It shows how two variables relate to each other by showing how closely the data points _______ to a line. The following table presents information on tornado occurrences. Make a scatter plot for the table. Year 1950195519601965197019751980198519901995 # of Tornadoes 20159361689765491986668411331234 scatter plot fit

10. Year 1950195519601965197019751980198519901995 # of Tornadoes 20159361689765491986668411331234 1950195519601965197019751980199019851995 200 400 600 800 1000 1200 Do you notice a trend?

11. Practice Pages 370-371 #1-16