Scatter Plots A graph that shows the relationship

Scatter Plots • A graph that shows the relationship between two sets of data • The data are graphed as ordered pairs on a coordinate plane

Scatter Plots

Scatter Plots • A graph that shows the relationship between two sets of data

Scatter Plots • A graph that shows the relationship between two sets of data • The data are graphed as ordered pairs on a coordinate plane • What are the two sets of data?

Scatter Plots • A graph that shows the relationship between two sets of data • The data are graphed as ordered pairs on a coordinate plane • What are the two sets of data? • What is the independent variable? • What is the dependent variable?

Scatter Plots • A graph that shows the relationship between two sets of data • The data are graphed as ordered pairs on a coordinate plane • What are the two sets of data? • What is the independent variable?

Scatter Plots • A graph that shows the relationship between two sets of data • The data are graphed as ordered pairs on a coordinate plane • What are the two sets of data? • What is the independent variable? • What is the dependent variable? • How would you describe this graph?

Positive Correlation • The graph points upwards to the right.

Positive Correlation • The graph points upwards to the right. • As x increases y increases

Negative Correlation • The graph points downward to the right

Negative Correlation • The graph points downward to the right • As x increases, y decreases

No Correlation • No obvious pattern

Trend Line • A line graphed to make a scatter plot more readable

Trend Line • A line graphed to make a scatter plot more readable • Is the trend line positive or negative?

Trend Line • A line graphed to make a scatter plot more readable • Is the trend line positive or negative? Positive

Trend Line • A line graphed to make a scatter plot more readable • Is the trend line positive or negative? Positive • Can you approximate the slope?