Scatter Plots and Correlations

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 it mean if a scatter plot has no association?

Back

It means that the ordered pairs have no predictable pattern.

Front

What type of correlation is indicated by a scatter plot where points trend upwards from left to right?

Back

Positive correlation.

Front

What type of correlation is indicated by a scatter plot where points trend downwards from left to right?

Back

Negative correlation.

Front

What does a strong positive correlation indicate?

Back

It indicates that as one variable increases, the other variable also increases significantly.

Front

What does a strong negative correlation indicate?

Back

It indicates that as one variable increases, the other variable decreases significantly.

Front

What is a weak correlation?

Back

A weak correlation indicates that there is a slight relationship between two variables, but it is not strong or consistent.

Front

What does it mean if there is no correlation between two variables?

Back

It means that changes in one variable do not affect the other variable.

Front

How can you describe a scatter plot with points that are tightly clustered in a straight line going upwards?

Back

Strong Positive correlation.

Front

How can you describe a scatter plot with points that are tightly clustered in a straight line going downwards?

Back

Strong Negative correlation.