Scatter Plots & Types of Association

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 correlation indicate in a scatter plot?

Back

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

Front

What does a negative correlation indicate in a scatter plot?

Back

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

Front

What does no correlation mean in a scatter plot?

Back

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

Front

How can you identify a positive linear association in a scatter plot?

Back

A positive linear association is identified by a pattern where data points slope upwards from left to right.

Front

How can you identify a negative linear association in a scatter plot?

Back

A negative linear association is identified by a pattern where data points slope downwards from left to right.

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 is an example of a positive correlation in real life?

Back

An example of a positive correlation is the relationship between hours studied and test scores; generally, more study hours lead to higher scores.

Front

What is an example of a negative correlation in real life?

Back

An example of a negative correlation is the relationship between the distance from a target and the percentage of hits; as distance increases, the percentage of hits typically decreases.

Front

What does the term 'linear association' mean?

Back

Linear association refers to a relationship between two variables that can be represented by a straight line on a graph.