Unit 8: Scatterplots and Associations

Front

What is a scatter plot?

Back

A scatter plot is a graph that shows the relationship between two quantitative variables by displaying data points on a two-dimensional axis.

Front

What does a positive association in a scatter plot indicate?

Back

A positive association indicates that as one variable increases, the other variable also tends to increase.

Front

What does a negative association in a scatter plot indicate?

Back

A negative association indicates that as one variable increases, the other variable tends to decrease.

Front

What does 'no association' mean in the context of scatter plots?

Back

No association means that there is no discernible relationship between the two variables; changes in one variable do not predict changes in the other.

Front

How can you identify a negative relationship in a scatter plot?

Back

A negative relationship can be identified when the data points slope downwards from left to right.

Front

How can you identify a positive relationship in a scatter plot?

Back

A positive relationship can be identified when the data points slope upwards from left to right.

Front

What is a linear association?

Back

A linear association is a relationship between two variables that can be represented by a straight line.

Front

What is a non-linear association?

Back

A non-linear association is a relationship between two variables that does not follow a straight line; it may curve or change direction.

Front

What is the purpose of using scatter plots?

Back

Scatter plots are used to visually assess the relationship between two variables and to identify trends, patterns, or correlations.

Front

What does it mean if a scatter plot has tightly clustered points?

Back

Tightly clustered points indicate a strong association between the two variables.